{"title":"2JZ","description":"\u003cp\u003eHaltech engine management for the Toyota 2JZ. ECUs, Rebel JZ options, harnesses, and supporting parts for the most famous inline six in tuning, with remote tuning from a shop that works on JZ engines constantly.\u003c\/p\u003e","products":[{"product_id":"ht-151341-elite-2500-lexus-is300-2jz-ge-vvti-2002-2005","title":"Elite 2500 + Lexus IS300 2JZ GE VVTi (2002-2005) Parallel Adaptor Harness Kit","description":"\u003cp\u003eThis is the complete Elite 2500 package for Lexus IS300 2JZ GE VVTi (2002-2005) Parallel Adaptor Harness Kit: the ECU matched with a plug 'n' play adaptor harness that connects it to the factory loom without cutting a wire. Parallel (piggy-back) install in conjunction with the factory ECU for Lexus IS300 2JZ GE VVTi (2002-2005) (USA models only) with automatic or manual transmissions. Everything needed to get from box to running engine ships together.\u003c\/p\u003e\n\u003ch2\u003eWhat You'll Feel\u003c\/h2\u003e\n\u003cp\u003eDay to day it comes down to this: factory-quality drivability with a race-grade ceiling: drive by wire throttle mapped to your combination, quad cam control where the engine supports it, and dual channel knock control protecting the engine while the tune stays aggressive. The JZ responds to standalone control better than almost any inline six: sequential injection, proper coil-on-plug dwell control, and boost by gear turn a strong engine into a composed one.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e8 injection and 8 ignition outputs suiting 1 to 12 cylinder and 2 to 4 rotor engines\u003c\/li\u003e\n\u003cli\u003eDrive by wire throttle control\u003c\/li\u003e\n\u003cli\u003eIntake and exhaust variable cam control\u003c\/li\u003e\n\u003cli\u003eDual channel knock control\u003c\/li\u003e\n\u003cli\u003eShort and long term map learning\u003c\/li\u003e\n\u003cli\u003eOn-board data logging and full CAN connectivity\u003c\/li\u003e\n\u003cli\u003ePlug 'n' play adaptor keeps the factory loom untouched and the conversion reversible\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eThe Details\u003c\/h2\u003e\n\u003cul\u003e\u003cli\u003eSKU: HT-151341\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch2\u003eKit Includes\u003c\/h2\u003e\n\u003cul\u003e\u003cli\u003eElite 2500 ECU with DBW and Race Functions, parallel adaptor harness, USB programming cable and software CD.\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cp\u003eParallel (piggy-back) install in conjunction with the factory ECU for Lexus IS300 2JZ GE VVTi (2002-2005) (USA models only) with automatic or manual transmissions. Built for Toyota JZ applications. Unsure about fitment for your build? Send us your engine and chassis details before ordering and we will confirm compatibility.\u003c\/p\u003e\n\u003cp\u003eTuned By Shawn is a Platinum Haltech Dealer backed by real wiring and calibration experience. Pair this with a remote tuning session over live Zoom and go from install to a finished calibration without visiting a shop.\u003c\/p\u003e","brand":"Haltech","offers":[{"title":"Default Title","offer_id":39405897744451,"sku":"HT-151341","price":2724.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0064\/7754\/5539\/products\/HT-151341_00.jpg?v=1703120972"},{"product_id":"ht-151326-elite-2500-toyota-2jz-hpi6","title":"Haltech Elite 2500 + Toyota 2JZ HPI6 Terminated Harness Kit (HT-151326)","description":"\u003cp\u003eThis is the complete Elite 2500 package for Toyota 2JZ HPI6: the ECU matched with a terminated engine harness with labelled, pre-terminated wiring that gets the engine side of the job done in hours. VVT-i and non VVT-i engines. Manual transmission only. Everything needed to get from box to running engine ships together.\u003c\/p\u003e\n\u003ch2\u003eWhat You'll Feel\u003c\/h2\u003e\n\u003cp\u003eDay to day it comes down to this: factory-quality drivability with a race-grade ceiling: drive by wire throttle mapped to your combination, quad cam control where the engine supports it, and dual channel knock control protecting the engine while the tune stays aggressive. The JZ responds to standalone control better than almost any inline six: sequential injection, proper coil-on-plug dwell control, and boost by gear turn a strong engine into a composed one.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e8 injection and 8 ignition outputs suiting 1 to 12 cylinder and 2 to 4 rotor engines\u003c\/li\u003e\n\u003cli\u003eDrive by wire throttle control\u003c\/li\u003e\n\u003cli\u003eIntake and exhaust variable cam control\u003c\/li\u003e\n\u003cli\u003eDual channel knock control\u003c\/li\u003e\n\u003cli\u003eShort and long term map learning\u003c\/li\u003e\n\u003cli\u003eOn-board data logging and full CAN connectivity\u003c\/li\u003e\n\u003cli\u003eTerminated harness with labelled, pre-terminated wiring built for this application\u003c\/li\u003e\n\u003cli\u003eInjector connectors: Bosch EV1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eThe Details\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSKU: HT-151326\u003c\/li\u003e\n\u003cli\u003eInjector connector: Bosch EV1\u003c\/li\u003e\n\u003cli\u003eNotes: If your engine is fitted with the factory electronic ETCS-i throttle body it will require a \"Throttle Convert Kit\" or conversion to a cable operated mechanical throttle body.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eKit Includes\u003c\/h2\u003e\n\u003cul\u003e\u003cli\u003eElite 2500 ECU with DBW and Race Functions. engine harness with fuse block, firewall grommet, pre-wired HPI6 15AMP 6CH ignition module and factory coil ignition harness, USB programming cable and USB Software Key.\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cp\u003eVVT-i and non VVT-i engines. Manual transmission only. Built for Toyota JZ applications. Unsure about fitment for your build? Send us your engine and chassis details before ordering and we will confirm compatibility.\u003c\/p\u003e\n\u003cp\u003eTuned By Shawn is a Platinum Haltech Dealer. Remote tuning sessions over live Zoom are available, so once the hardware is installed we can calibrate it on your injectors, your fuel, and your combination without the car leaving your garage.\u003c\/p\u003e","brand":"Haltech","offers":[{"title":"Default Title","offer_id":39405900955715,"sku":"HT-151326","price":3549.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0064\/7754\/5539\/products\/HT-151326_00.jpg?v=1703121025"},{"product_id":"ht-151355-elite-2500-toyota-2jz-ign-1a","title":"Haltech Elite 2500 + Toyota 2JZ IGN-1A Terminated Harness Kit (HT-151355)","description":"\u003cp\u003eToyota 2JZ IGN-1A running a Haltech Elite 2500 is one of the strongest combinations in standalone engine management, and this kit delivers both halves at once: the ECU plus a terminated engine harness with labelled, pre-terminated wiring that gets the engine side of the job done in hours. VVT-i and non VVT-i engines. Manual transmission only.\u003c\/p\u003e\n\u003ch2\u003eWhat You'll Feel\u003c\/h2\u003e\n\u003cp\u003eFactory-quality drivability with a race-grade ceiling: drive by wire throttle mapped to your combination, quad cam control where the engine supports it, and dual channel knock control protecting the engine while the tune stays aggressive. The JZ responds to standalone control better than almost any inline six: sequential injection, proper coil-on-plug dwell control, and boost by gear turn a strong engine into a composed one.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e8 injection and 8 ignition outputs suiting 1 to 12 cylinder and 2 to 4 rotor engines\u003c\/li\u003e\n\u003cli\u003eDrive by wire throttle control\u003c\/li\u003e\n\u003cli\u003eIntake and exhaust variable cam control\u003c\/li\u003e\n\u003cli\u003eDual channel knock control\u003c\/li\u003e\n\u003cli\u003eShort and long term map learning\u003c\/li\u003e\n\u003cli\u003eOn-board data logging and full CAN connectivity\u003c\/li\u003e\n\u003cli\u003eTerminated harness with labelled, pre-terminated wiring built for this application\u003c\/li\u003e\n\u003cli\u003eInjector connectors: Bosch EV1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eThe Details\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSKU: HT-151355\u003c\/li\u003e\n\u003cli\u003eInjector connector: Bosch EV1\u003c\/li\u003e\n\u003cli\u003eNotes: If your engine is fitted with the factory electronic ETCS-i throttle body it will require a \"Throttle Convert Kit\" or conversion to a cable operated mechanical throttle body. IGN-1A coils are NOT included. Please order 6 x HT-020114 if required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eKit Includes\u003c\/h2\u003e\n\u003cul\u003e\u003cli\u003eElite 2500 ECU with DBW and Race Functions. engine harness with fuse block, firewall grommet, pre-wired high output IGN-1A inductive coil (with built-in ignitor) ignition harness, USB programming cable and USB Software Key.\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cp\u003eVVT-i and non VVT-i engines. Manual transmission only. Built for Toyota JZ applications. Check the notes above before ordering, and if fitment is unclear, contact us with your engine and chassis details and we will confirm the right part number.\u003c\/p\u003e\n\u003cp\u003eTuned By Shawn is a Platinum Haltech Dealer backed by real wiring and calibration experience. Pair this with a remote tuning session over live Zoom and go from install to a finished calibration without visiting a shop.\u003c\/p\u003e","brand":"Haltech","offers":[{"title":"Default Title","offer_id":39405901152323,"sku":"HT-151355","price":3144.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0064\/7754\/5539\/products\/HT-151355_00.jpg?v=1703121025"},{"product_id":"ht-141341-elite-2000-2500-lexus-is300-2jz-ge-vvti","title":"Elite 2000\/2500 Lexus IS300 2JZ GE VVTi (2002-05 USA models only) Parallel Adaptor Harness","description":"\u003cp\u003eElite 2000\/2500 Lexus IS300 2JZ GE VVTi (2002-05 USA models only) Parallel Adaptor Harness. Parallel (piggy-back) installation in conjunction with the factory ECU for Lexus IS300 2JZ GE VVTi (2002-2005) (USA models only) with automatic or manual transmissions. Genuine Haltech hardware, built to integrate with the rest of the system.\u003c\/p\u003e\n\u003ch2\u003eWhy It Matters\u003c\/h2\u003e\n\u003cp\u003eCorrect pinouts the first time, labelled circuits that make diagnosis simple, and factory-grade terminations with no splices to suspect later. Wiring is where builds stall, and purpose-built harnesses are how they don't.\u003c\/p\u003e\n\u003ch2\u003eThe Details\u003c\/h2\u003e\n\u003cul\u003e\u003cli\u003eSKU: HT-141341\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch2\u003eKit Includes\u003c\/h2\u003e\n\u003cul\u003e\u003cli\u003eParallel adapter harness, extension harness for optional GM 3 or 4 BAR MAP sensor upgrade.\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cp\u003eParallel (piggy-back) installation in conjunction with the factory ECU for Lexus IS300 2JZ GE VVTi (2002-2005) (USA models only) with automatic or manual transmissions. Unsure whether this suits your ECU or build? Send us the details before ordering and we will confirm compatibility.\u003c\/p\u003e\n\u003cp\u003eAs a Platinum Haltech Dealer, Tuned By Shawn can confirm fitment for your exact setup before you order, and remote tuning over live Zoom is available once everything is installed.\u003c\/p\u003e","brand":"Haltech","offers":[{"title":"Default Title","offer_id":39405916454979,"sku":"HT-141341","price":765.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0064\/7754\/5539\/products\/HT-141341_00.jpg?v=1703121252"},{"product_id":"ht-151342-elite-2500-toyota-supra-jza80-2jz-non-vvti","title":"Elite 2500 + Toyota Supra JZA80 2JZ (non VVTi) Plug 'n' Play Adaptor Harness Kit","description":"\u003cp\u003eToyota Supra JZA80 2JZ (non VVTi) running a Haltech Elite 2500 is one of the strongest combinations in standalone engine management, and this kit delivers both halves at once: the ECU plus a plug 'n' play adaptor harness that connects it to the factory loom without cutting a wire. Plug 'n' Play replacement of the factory ECU for Toyota Supra JZA80 2JZ non VVTi with manual transmission only.\u003c\/p\u003e\n\u003ch2\u003eWhat You'll Feel\u003c\/h2\u003e\n\u003cp\u003eFactory-quality drivability with a race-grade ceiling: drive by wire throttle mapped to your combination, quad cam control where the engine supports it, and dual channel knock control protecting the engine while the tune stays aggressive. The JZ responds to standalone control better than almost any inline six: sequential injection, proper coil-on-plug dwell control, and boost by gear turn a strong engine into a composed one.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e8 injection and 8 ignition outputs suiting 1 to 12 cylinder and 2 to 4 rotor engines\u003c\/li\u003e\n\u003cli\u003eDrive by wire throttle control\u003c\/li\u003e\n\u003cli\u003eIntake and exhaust variable cam control\u003c\/li\u003e\n\u003cli\u003eDual channel knock control\u003c\/li\u003e\n\u003cli\u003eShort and long term map learning\u003c\/li\u003e\n\u003cli\u003eOn-board data logging and full CAN connectivity\u003c\/li\u003e\n\u003cli\u003ePlug 'n' play adaptor keeps the factory loom untouched and the conversion reversible\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eThe Details\u003c\/h2\u003e\n\u003cul\u003e\u003cli\u003eSKU: HT-151342\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch2\u003eKit Includes\u003c\/h2\u003e\n\u003cul\u003e\u003cli\u003eElite 2500 ECU with DBW and Race Functions, injection molded plastic plug 'n' play adaptor harness, M14 x 1.5 air temp sensor with matching plug and pins, auxiliary I\/O 16 Pin TYCO plug and pins, USB programming cable and USB software key.\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cp\u003ePlug 'n' Play replacement of the factory ECU for Toyota Supra JZA80 2JZ non VVTi with manual transmission only. Built for Toyota JZ applications. Unsure about fitment for your build? Send us your engine and chassis details before ordering and we will confirm compatibility.\u003c\/p\u003e\n\u003cp\u003eAs a Platinum Haltech Dealer, Tuned By Shawn supports everything we sell with in-house wiring services and remote tuning over live Zoom. Questions on fitment or setup before you order, send them through and we will confirm the right parts for your build.\u003c\/p\u003e","brand":"Haltech","offers":[{"title":"Default Title","offer_id":39405917831235,"sku":"HT-151342","price":2979.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0064\/7754\/5539\/products\/HT-151342_00.jpg?v=1703121276"},{"product_id":"ht-141342-elite-2000-2500-plug-n-play-adaptor-harness-kit","title":"Elite 2000\/2500 Plug 'n' Play Adaptor Harness Kit to suit Toyota Supra JZA80 2JZ (non VVTi)","description":"\u003cp\u003eThis plug 'n' play adaptor harness connects a Haltech Elite ECU to the factory loom without cutting a single wire. Plug 'n' Play replacement of the factory ECU for Toyota Supra JZA80 2JZ non VVTi with manual transmission only. One side plugs into the Haltech, the other carries factory connectors, and the conversion stays fully reversible.\u003c\/p\u003e\n\u003ch2\u003eWhy It Matters\u003c\/h2\u003e\n\u003cp\u003eA wire-in conversion on a street car means days of labor and a permanently modified loom. This adaptor removes that risk: factory-quality connector fit, correct pinouts out of the box, and a clean path back to stock. The JZ responds to standalone control better than almost any inline six: sequential injection, proper coil-on-plug dwell control, and boost by gear turn a strong engine into a composed one.\u003c\/p\u003e\n\u003ch2\u003eThe Details\u003c\/h2\u003e\n\u003cul\u003e\u003cli\u003eSKU: HT-141342\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch2\u003eKit Includes\u003c\/h2\u003e\n\u003cul\u003e\u003cli\u003eInjection molded plastic plug 'n' play adaptor harness, M14 x 1.5 air temp sensor with matching plug and pins, auxiliary I\/O 16 Pin Tyco plug and pins, USB programming cable and software CD.\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cp\u003ePlug 'n' Play replacement of the factory ECU for Toyota Supra JZA80 2JZ non VVTi with manual transmission only. Built for Toyota JZ applications. Unsure about fitment for your build? Send us your engine and chassis details before ordering and we will confirm compatibility.\u003c\/p\u003e\n\u003cp\u003eTuned By Shawn is a Platinum Haltech Dealer backed by real wiring and calibration experience. Pair this with a remote tuning session over live Zoom and go from install to a finished calibration without visiting a shop.\u003c\/p\u003e","brand":"Haltech","offers":[{"title":"Default Title","offer_id":39405917864003,"sku":"HT-141342","price":1020.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0064\/7754\/5539\/products\/HT-141342_00.jpg?v=1703121277"},{"product_id":"ht-130318-elite-2000-2500-toyota-2jz","title":"Elite 2000\/2500 Toyota 2JZ Terminated Engine Harness (HT-130318)","description":"\u003cp\u003eElite 2000\/2500 Toyota 2JZ Terminated Engine Harness: the right part for a clean, reliable installation. \u003c\/p\u003e\n\u003ch2\u003eWhy It Matters\u003c\/h2\u003e\n\u003cp\u003eCorrect pinouts the first time, labelled circuits that make diagnosis simple, and factory-grade terminations with no splices to suspect later. Wiring is where builds stall, and purpose-built harnesses are how they don't.\u003c\/p\u003e\n\u003ch2\u003eThe Details\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSKU: HT-130318\u003c\/li\u003e\n\u003cli\u003eNotes: This harness can also support 1JZ-GTE engines but will require either a 2JZ coolant temperature sensor or a connector changed to (P\/N AMP 184004).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eKit Includes\u003c\/h2\u003e\n\u003cul\u003e\u003cli\u003eTerminated engine Harness. Firewall grommet, moulded 6 power circuit Haltech fuse box and lid. 5 relays, 5 fuses and pins for the spare power circuit.\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cp\u003eUnsure whether this suits your ECU or build? Send us the details before ordering and we will confirm compatibility.\u003c\/p\u003e\n\u003cp\u003eTuned By Shawn is a Platinum Haltech Dealer with in-house wiring and remote tuning services. If this needs to integrate with a larger build plan, ask and we will spec the full parts list.\u003c\/p\u003e","brand":"Haltech","offers":[{"title":"Default Title","offer_id":39405917929539,"sku":"HT-130318","price":940.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0064\/7754\/5539\/products\/HT-130318_00.jpg?v=1703121277"},{"product_id":"ht-130319-elite-2000-2500","title":"Elite 2000\/2500 Toyota 2JZ HPI6 Ignition Harness (HT-130319)","description":"\u003ch2\u003eElite 2000\/2500 Toyota 2JZ HPI6 Ignition Harness\u003c\/h2\u003e\n\u003cp\u003eThis ignition harness is the dedicated link for running a Haltech HPI6 High Power Igniter ignition setup on a Toyota 2JZ wired with the Elite 2000\/2500 terminated engine harness. It plugs into the ignition outputs of the main terminated harness so your six ignition channels route cleanly to the igniter without custom wiring.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSuits the Elite 2000\/2500 Toyota 2JZ Terminated Engine Harness, HT-130318, sold separately on this store\u003c\/li\u003e\n\u003cli\u003eFor HPI6 High Power Igniter based ignition systems; igniter module and coils sold separately\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eImportant Notes\u003c\/h2\u003e\n\u003cp\u003eEmissions notice: Haltech products are designed and sold for sanctioned off-road and competition non-emissions controlled vehicles only. It is the responsibility of the installer and user to ensure compliance with all applicable local and federal laws.\u003c\/p\u003e\n\u003ch2\u003eWhy Buy From Tuned By Shawn\u003c\/h2\u003e\n\u003cp\u003eAs a Platinum Haltech dealer, Tuned By Shawn can spec the complete 2JZ ignition chain alongside your terminated harness and ECU. Email service@tunedbyshawn.com before you order, Shawn answers these himself.\u003c\/p\u003e","brand":"Haltech","offers":[{"title":"Default Title","offer_id":39405917962307,"sku":"HT-130319","price":314.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0064\/7754\/5539\/products\/HT-130319_00.jpg?v=1703121277"},{"product_id":"ht-130320-elite-2000-2500","title":"Elite 2000\/2500 Toyota 2JZ Power Select 6 CDI Terminated Ignition Harness","description":"\u003cp\u003eElite 2000\/2500 Toyota 2JZ Power Select 6 CDI Terminated Ignition Harness takes ignition off the list of limits. \u003c\/p\u003e\n\u003ch2\u003eWhat You'll Feel\u003c\/h2\u003e\n\u003cp\u003eClean, consistent spark at cylinder pressures that kill weaker systems. Misfire under boost stops being the ceiling on timing and lambda targets, and a strong, controlled ignition event means the tune can run where the engine wants it.\u003c\/p\u003e\n\u003ch2\u003eThe Details\u003c\/h2\u003e\n\u003cul\u003e\u003cli\u003eSKU: HT-130320\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cp\u003eUnsure whether this suits your ECU or build? Send us the details before ordering and we will confirm compatibility.\u003c\/p\u003e\n\u003cp\u003eTuned By Shawn is a Platinum Haltech Dealer. Questions on compatibility with your ECU or build, send them through before ordering and we will confirm the right part.\u003c\/p\u003e","brand":"Haltech","offers":[{"title":"Default Title","offer_id":39405918027843,"sku":"HT-130320","price":336.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0064\/7754\/5539\/products\/HT-130320_00.jpg?v=1703121280"},{"product_id":"elite-2500-toyota-2jz-no-ignition-harness-terminated-harness-kit-injector-connector-bosch-ev1","title":"Haltech Elite 2500 + Toyota 2JZ No Ignition Harness Terminated Harness Kit Injector Connector: Bosch EV1 (HT-151353)","description":"\u003cp\u003ePutting a Haltech Elite 2500 behind Toyota 2JZ No Ignition Harness starts here: this kit combines the ECU with a terminated engine harness with labelled, pre-terminated wiring that gets the engine side of the job done in hours. VVT-i and non VVT-i engines. Manual transmission only. Notes: If your engine is fitted with the factory electronic ETCS-i throttle body it will require a \"Throttle Convert Kit\" or conversion to a cable operated mechanical throttle body. One order covers the ECU and the connection layer, so the build is not waiting on a second box of parts.\u003c\/p\u003e\n\u003ch2\u003eWhat You'll Feel\u003c\/h2\u003e\n\u003cp\u003eFrom the driver's seat: factory-quality drivability with a race-grade ceiling: drive by wire throttle mapped to your combination, quad cam control where the engine supports it, and dual channel knock control protecting the engine while the tune stays aggressive. The JZ responds to standalone control better than almost any inline six: sequential injection, proper coil-on-plug dwell control, and boost by gear turn a strong engine into a composed one.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e8 injection and 8 ignition outputs suiting 1 to 12 cylinder and 2 to 4 rotor engines\u003c\/li\u003e\n\u003cli\u003eDrive by wire throttle control\u003c\/li\u003e\n\u003cli\u003eIntake and exhaust variable cam control\u003c\/li\u003e\n\u003cli\u003eDual channel knock control\u003c\/li\u003e\n\u003cli\u003eShort and long term map learning\u003c\/li\u003e\n\u003cli\u003eOn-board data logging and full CAN connectivity\u003c\/li\u003e\n\u003cli\u003eTerminated harness with labelled, pre-terminated wiring built for this application\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eThe Details\u003c\/h2\u003e\n\u003cul\u003e\u003cli\u003eSKU: HT-151353\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch2\u003eKit Includes\u003c\/h2\u003e\n\u003cul\u003e\u003cli\u003eHaltech Elite 2500 ECU with DBW and Race Functions. engine harness with fuse block, firewall grommet, 1200mm ignition extension harness, USB programming cable and USB Software Key.\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cp\u003eVVT-i and non VVT-i engines. Manual transmission only. Notes: If your engine is fitted with the factory electronic ETCS-i throttle body it will require a \"Throttle Convert Kit\" or conversion to a cable operated mechanical throttle body. Built for Toyota JZ applications. Unsure about fitment for your build? Send us your engine and chassis details before ordering and we will confirm compatibility.\u003c\/p\u003e\n\u003cp\u003eTuned By Shawn is a Platinum Haltech Dealer. If you want help planning the install or a remote Zoom tuning session once it is in, both are services we run in house.\u003c\/p\u003e","brand":"Haltech","offers":[{"title":"Default Title","offer_id":40148608680003,"sku":"HT-151353","price":2941.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0064\/7754\/5539\/products\/HT-151353_00.jpg?v=1703122610"},{"product_id":"ht-130337-universal-inline-6-cylinder-ign-1a-ignition-harness","title":"Universal Inline 6 Cylinder High Output IGN-1A Inductive Coil Ignition Harness (HT-130337)","description":"\u003cp\u003eUniversal Inline 6 Cylinder High Output IGN-1A Inductive Coil Ignition Harness: proven ignition hardware for engines pushing past what stock spark can light. \u003c\/p\u003e\n\u003ch2\u003eWhat You'll Feel\u003c\/h2\u003e\n\u003cp\u003eClean, consistent spark at cylinder pressures that kill weaker systems. Misfire under boost stops being the ceiling on timing and lambda targets, and a strong, controlled ignition event means the tune can run where the engine wants it.\u003c\/p\u003e\n\u003ch2\u003eThe Details\u003c\/h2\u003e\n\u003cul\u003e\u003cli\u003eSKU: HT-130337\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cp\u003eUnsure whether this suits your ECU or build? Send us the details before ordering and we will confirm compatibility.\u003c\/p\u003e\n\u003cp\u003eAs a Platinum Haltech Dealer, Tuned By Shawn can confirm fitment for your exact setup before you order, and remote tuning over live Zoom is available once everything is installed.\u003c\/p\u003e","brand":"Haltech","offers":[{"title":"Default Title","offer_id":40150812426307,"sku":"HT-130337","price":245.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0064\/7754\/5539\/files\/HT-130337UniversalInline6CylinderHighOutputIGN-1AInductiveCoilIgnitionHarness.jpg?v=1703122652"},{"product_id":"nexus-rebel-jz","title":"NEXUS Rebel JZ (HT-220205)","description":"\u003cdiv class=\"mt-3 mb-2\"\u003e\u003cstrong\u003ePRE-SALE PRODUCT - Expected to Ship February 2026\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv class=\"mt-3 mb-2\"\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mt-3 mb-2\"\u003e\u003cstrong\u003eThe 2095.80 price is a deposit - $399.20 will be due prior to shipping. \u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv class=\"mt-3 mb-2\"\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mt-3 mb-2\"\u003e\u003cstrong\u003eWith the Rebel JZ, all the hard work is done. It is the best, quickest, and easiest way to get your JZ swap up and running!\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv class=\"mt-3 mb-2\"\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003eECU designed from the ground up to suit Toyotas popular JZ engine platform\u003c\/div\u003e\n\u003cdiv\u003eStart-up is a breeze thanks to the new Set-up Wizard in our NSP software\u003c\/div\u003e\n\u003cdiv\u003eComes complete with an easy-to-install harness to suit multiple Toyota JZ applications\u003c\/div\u003e\n\u003cdiv\u003eEasy integration with Haltech dashes, PDMs, sensor kits, and accessories\u003c\/div\u003e\n\u003cdiv\u003eKit Supports:\u003c\/div\u003e\n\u003cdiv\u003e1JZ-GTE Non-VVT-i\u003c\/div\u003e\n\u003cdiv\u003e1JZ-GE VVT-i\u003c\/div\u003e\n\u003cdiv\u003e1JZ-GTE VVT-i\u003c\/div\u003e\n\u003cdiv\u003e2JZ-GTE Non-VVT-i\u003c\/div\u003e\n\u003cdiv\u003e2JZ-GE VVT-i\u003c\/div\u003e\n\u003cdiv\u003e2JZ-GTE VVT-i\u003c\/div\u003e\n\u003cdiv\u003eManual Transmissions Only - Kit supplied with harness to suit R154 Transmission\u003c\/div\u003e\n\u003cdiv class=\"mt-3 mb-2\"\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mt-3 mb-2\"\u003e\u003cstrong\u003ePlease note\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003eHarness is supplied with ignition harness to suit R35 Coil conversion, Converison kit available to be purchased seperately from Haltech see part number - HT-120200\u003c\/div\u003e\n\u003cdiv class=\"mt-3 mb-2\"\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mt-3 mb-2\"\u003e\u003cstrong\u003eDoes Not Support\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003eToyota Electronic Throttle Control System - Intelligent (ETCS-i) - aka semi DBW, Distributor ignition systems, Wasted spark ignition systems, Low impedance injectors , Sequential twin turbo setup, 1JZ OEM Coolant Temperature Sensor\u003c\/div\u003e","brand":"Tuned By Shawn","offers":[{"title":"Default Title","offer_id":42872067457091,"sku":"HT-220205","price":2495.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0064\/7754\/5539\/files\/HT-220205_00.jpg?v=1786550891"},{"product_id":"lexus-gs300-lexus-is300-2002-2005-haltech-nexus-wiring-harness-bf29084","title":"Lexus GS300 | Lexus IS300 2002-2005 Haltech Nexus Wiring Harness (BF29084)","description":"\u003cp\u003e\u003cstrong\u003eThe 2005 GS300 3GR-FSE is a capable V6 platform that benefits from proper standalone engine management.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Lexus GS300 3GR-FSE platform has a strong tuning community, and standalone ECU support opens what the factory management keeps locked down. The \u003cstrong\u003eBoomslang PNP Wiring Harness for the Haltech Nexus\u003c\/strong\u003e connects directly to your factory harness without any permanent modifications, giving the Haltech Nexus full standalone engine control. No cutting, no splicing, fully reversible.\u003c\/p\u003e\n\u003ch4\u003eAdvantages\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eThrottle response that's precise and proportional\u003c\/li\u003e\n\u003cli\u003eFuel and ignition timing calibrated to your actual modifications, not Toyota's conservative baseline\u003c\/li\u003e\n\u003cli\u003eIdle stability that's locked in regardless of temperature\u003c\/li\u003e\n\u003cli\u003eConsistent engine behavior across temperature ranges\u003c\/li\u003e\n\u003cli\u003eA proper tuning foundation for this specific chassis\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePlug-and-play fitment for 2002-2005 Lexus GS300 3GR-FSE, all transmission types\u003c\/li\u003e\n\u003cli\u003eCompatible with Haltech Nexus R3, R5, S2, and S3 ECUs\u003c\/li\u003e\n\u003cli\u003eNo cutting or splicing of factory wiring\u003c\/li\u003e\n\u003cli\u003eOEM-quality connectors, USA-built byBoomslang Fabrication\u003c\/li\u003e\n\u003cli\u003eFully reversible, factory harness preserved\u003c\/li\u003e\n\u003cli\u003eFor competition and off-road use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eThe Details\u003c\/h4\u003e\n\u003cp\u003eBuilt specifically for this vehicle's connector layout with OEM-spec connectors and correct wire gauge throughout. Your factory harness stays completely untouched and the vehicle can return to stock at any time. 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The \u003cstrong\u003eBoomslang PNP Wiring Harness for the Haltech Nexus\u003c\/strong\u003e connects directly to your factory harness without any permanent modifications, giving the Haltech Nexus full standalone engine control. No cutting, no splicing, fully reversible.\u003c\/p\u003e\n\u003ch4\u003eAdvantages\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePower delivery that's smooth and consistent across the full torque curve\u003c\/li\u003e\n\u003cli\u003eFuel and ignition timing calibrated to your actual modifications, not Toyota's conservative baseline\u003c\/li\u003e\n\u003cli\u003eIdle stability that's locked in regardless of temperature\u003c\/li\u003e\n\u003cli\u003eConsistent engine behavior across temperature ranges\u003c\/li\u003e\n\u003cli\u003eA proper tuning foundation for this specific chassis\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePlug-and-play fitment for 1998-2001 Lexus GS300 2JZ-GE, all transmission types\u003c\/li\u003e\n\u003cli\u003eCompatible with Haltech Nexus R3, R5, S2, and S3 ECUs\u003c\/li\u003e\n\u003cli\u003eNo cutting or splicing of factory wiring\u003c\/li\u003e\n\u003cli\u003eOEM-quality connectors, USA-built byBoomslang Fabrication\u003c\/li\u003e\n\u003cli\u003eFully reversible, factory harness preserved\u003c\/li\u003e\n\u003cli\u003eFor competition and off-road use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eThe Details\u003c\/h4\u003e\n\u003cp\u003eBuilt specifically for this vehicle's connector layout with OEM-spec connectors and correct wire gauge throughout. Your factory harness stays completely untouched and the vehicle can return to stock at any time. In automatic transmission applications, the factory ECU remains in parallel for transmission control while the Haltech Nexus manages the engine.\u003c\/p\u003e\n\u003ch4\u003eKit Includes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e1xBoomslang PNP wiring harness for 1998-2001 Lexus GS300 2JZ-GE\u003c\/li\u003e\n\u003cli\u003eHaltech Nexus ECU sold separately\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFitment\u003c\/h4\u003e\n\u003cp\u003e1998-2001 Lexus GS300 \/ 1998-2001 Lexus IS300 \/ 1998-2001 Lexus SC300 \/ 1998-2001 Toyota Aristo 2JZ-GE VVT-i \/ 1998-2001 Toyota Supra 2JZ-GE, All Transmission Types.\u003c\/p\u003e","brand":"Boomslang","offers":[{"title":"R3","offer_id":43437441384515,"sku":"BF29083-R3","price":960.0,"currency_code":"USD","in_stock":true},{"title":"R5","offer_id":43437441417283,"sku":"BF29083-R5","price":1120.0,"currency_code":"USD","in_stock":true},{"title":"S3","offer_id":43437441450051,"sku":"BF29083-S3","price":960.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0064\/7754\/5539\/files\/Boomslang-nexus-wiring-harness-2.png?v=1780677538"},{"product_id":"lexus-sc300-toyota-supra-2jz-ge-1992-1997-haltech-nexus-wiring-harness-bf29124","title":"Lexus SC300 | Toyota Supra 2JZ-GE 1992-1997 Haltech Nexus Wiring Harness (BF29124)","description":"\u003cp\u003e\u003cstrong\u003eThe SC300 2JZ-GE is one of the most respected inline-six platforms in the tuning world, and standalone ECU support for the manual transmission variant starts here.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Lexus SC300 2JZ-GE platform has a strong tuning community, and standalone ECU support opens what the factory management keeps locked down. The \u003cstrong\u003eBoomslang PNP Wiring Harness for the Haltech Nexus\u003c\/strong\u003e connects directly to your factory harness without any permanent modifications, giving the Haltech Nexus full standalone engine control. No cutting, no splicing, fully reversible.\u003c\/p\u003e\n\u003ch4\u003eAdvantages\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePower delivery that's smooth and consistent across the full torque curve\u003c\/li\u003e\n\u003cli\u003eFuel and ignition timing calibrated to your actual modifications, not Toyota's conservative baseline\u003c\/li\u003e\n\u003cli\u003eIdle stability that's locked in regardless of temperature\u003c\/li\u003e\n\u003cli\u003eConsistent engine behavior across temperature ranges\u003c\/li\u003e\n\u003cli\u003eA proper tuning foundation for this specific chassis\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePlug-and-play fitment for 1992-1997 Lexus SC300 2JZ-GE, manual transmission\u003c\/li\u003e\n\u003cli\u003eCompatible with Haltech Nexus R3, R5, S2, and S3 ECUs\u003c\/li\u003e\n\u003cli\u003eNo cutting or splicing of factory wiring\u003c\/li\u003e\n\u003cli\u003eOEM-quality connectors, USA-built byBoomslang Fabrication\u003c\/li\u003e\n\u003cli\u003eFully reversible, factory harness preserved\u003c\/li\u003e\n\u003cli\u003eFor competition and off-road use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eThe Details\u003c\/h4\u003e\n\u003cp\u003eBuilt specifically for this vehicle's connector layout with OEM-spec connectors and correct wire gauge throughout. 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The \u003cstrong\u003eBoomslang PNP Wiring Harness for the Haltech Nexus\u003c\/strong\u003e connects directly to your factory harness without any permanent modifications, giving the Haltech Nexus full standalone engine control. 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The \u003cstrong\u003eTuned By Shawn PNP Wiring Harness Kit for the Haltech Nexus\u003c\/strong\u003e connects directly to your factory harness without any permanent modifications, giving the Haltech Nexus full standalone engine control. No cutting, no splicing, fully reversible.\u003c\/p\u003e\n\u003ch4\u003eAdvantages\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eBoost that builds and holds exactly where you dial it in, not where the factory knock strategy allows\u003c\/li\u003e\n\u003cli\u003eTiming that advances where it should instead of pulling at the first sign of heat\u003c\/li\u003e\n\u003cli\u003ePower delivery that's linear and predictable through the entire boost curve\u003c\/li\u003e\n\u003cli\u003eA tune built around your exact modifications, not averaged factory parameters\u003c\/li\u003e\n\u003cli\u003eConfidence that what happened on the dyno is what happens on the track\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePlug-and-play fitment for 1991-1998 Toyota Supra 2JZ-GTE, automatic transmission (Aisin A341E)\u003c\/li\u003e\n\u003cli\u003eCompatible with Haltech Nexus R3, R5, S2, and S3 ECUs\u003c\/li\u003e\n\u003cli\u003eNo cutting or splicing of factory wiring\u003c\/li\u003e\n\u003cli\u003eOEM-quality connectors, USA-built by Boomslang Fabrication\u003c\/li\u003e\n\u003cli\u003eFully reversible, factory harness preserved\u003c\/li\u003e\n\u003cli\u003eFor competition and off-road use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eThe Details\u003c\/h4\u003e\n\u003cp\u003eBuilt specifically for this vehicle's connector layout with OEM-spec connectors and correct wire gauge throughout. Your factory harness stays completely untouched and the car can return to stock at any time. The Haltech Nexus takes full engine control once installed, giving your tuner a clean vehicle-specific foundation to build a proper map from.\u003c\/p\u003e\n\u003ch4\u003eTransmission\u003c\/h4\u003e\n\u003cp\u003eThe 2JZ-GTE cars did not get the standard A340E. Toyota fitted the \u003cstrong\u003eA341E\u003c\/strong\u003e, the heavy-duty member of the same A340 family, with a longer input shaft and a larger pump and converter to survive the turbo motor's torque. The automatic chassis uses a different engine-bay connector layout than the manual, which is why this harness carries its own part number. Check the code stamped on the transmission ID plate before ordering — if the car is a manual, you want the manual-transmission harness instead.\u003c\/p\u003e\n\u003ch4\u003eKit Includes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e1x Boomslang PNP wiring harness for 1991-1998 Toyota Supra 2JZ-GTE \u003c\/li\u003e\n\u003cli\u003eHaltech Nexus S3 ECU\u003c\/li\u003e\n\u003cli\u003eAir Temp Sensor - Small Thread Thread: M14 x 1.5\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFitment\u003c\/h4\u003e\n\u003cp\u003e1991-1998 Toyota Supra 2JZ-GTE \/ 1991-1998 Toyota Aristo 2JZ-GTE, Automatic Transmission (A341E).\u003c\/p\u003e","brand":"Tuned By Shawn","offers":[{"title":"Default Title","offer_id":43447219880003,"sku":"HT-650961","price":3465.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0064\/7754\/5539\/files\/HT-213301_00BFv2.png?v=1782007150"},{"product_id":"haltech-nexus-r3-toyota-supra-2jz-gte-toyota-aristo-2jz-gte-1991-1998-plug-n-play-adapter-harness-kit-ht-650962","title":"Haltech Nexus R3 VCU \u0026 Toyota Supra 2JZ-GTE | Toyota Aristo 2JZ-GTE 1991-1998 Plug 'n' Play Adapter Harness Kit - A341E Automatic (HT-650962)","description":"\u003cp\u003e\u003cstrong\u003eThe Supra 2JZ-GTE responds to boost and tuning the factory ECU was never built to deliver.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Toyota Supra 2JZ-GTE and its platform-mates share a factory ECU that prioritizes emissions and averaged-out reliability over what the engine can actually do. The \u003cstrong\u003eTuned By Shawn PNP Wiring Harness Kit for the Haltech Nexus\u003c\/strong\u003e connects directly to your factory harness without any permanent modifications, giving the Haltech Nexus full standalone engine control. No cutting, no splicing, fully reversible.\u003c\/p\u003e\n\u003ch4\u003eAdvantages\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eBoost that builds and holds exactly where you dial it in, not where the factory knock strategy allows\u003c\/li\u003e\n\u003cli\u003eTiming that advances where it should instead of pulling at the first sign of heat\u003c\/li\u003e\n\u003cli\u003ePower delivery that's linear and predictable through the entire boost curve\u003c\/li\u003e\n\u003cli\u003eA tune built around your exact modifications, not averaged factory parameters\u003c\/li\u003e\n\u003cli\u003eConfidence that what happened on the dyno is what happens on the track\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePlug-and-play fitment for 1991-1998 Toyota Supra 2JZ-GTE, automatic transmission (Aisin A341E)\u003c\/li\u003e\n\u003cli\u003eCompatible with Haltech Nexus R3, R5, S2, and S3 ECUs\u003c\/li\u003e\n\u003cli\u003eNo cutting or splicing of factory wiring\u003c\/li\u003e\n\u003cli\u003eOEM-quality connectors, USA-built by Boomslang Fabrication\u003c\/li\u003e\n\u003cli\u003eFully reversible, factory harness preserved\u003c\/li\u003e\n\u003cli\u003eFor competition and off-road use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eThe Details\u003c\/h4\u003e\n\u003cp\u003eBuilt specifically for this vehicle's connector layout with OEM-spec connectors and correct wire gauge throughout. Your factory harness stays completely untouched and the car can return to stock at any time. The Haltech Nexus takes full engine control once installed, giving your tuner a clean vehicle-specific foundation to build a proper map from.\u003c\/p\u003e\n\u003ch4\u003eTransmission\u003c\/h4\u003e\n\u003cp\u003eThe 2JZ-GTE cars did not get the standard A340E. Toyota fitted the \u003cstrong\u003eA341E\u003c\/strong\u003e, the heavy-duty member of the same A340 family, with a longer input shaft and a larger pump and converter to survive the turbo motor's torque. The automatic chassis uses a different engine-bay connector layout than the manual, which is why this harness carries its own part number. Check the code stamped on the transmission ID plate before ordering — if the car is a manual, you want the manual-transmission harness instead.\u003c\/p\u003e\n\u003ch4\u003eKit Includes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e1x Boomslang PNP wiring harness for 1991-1998 Toyota Supra 2JZ-GTE \u003c\/li\u003e\n\u003cli\u003eHaltech Nexus R3 VCU\u003c\/li\u003e\n\u003cli\u003eAir Temp Sensor - Small Thread Thread: M14 x 1.5\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFitment\u003c\/h4\u003e\n\u003cp\u003e1991-1998 Toyota Supra 2JZ-GTE \/ 1991-1998 Toyota Aristo 2JZ-GTE, Automatic Transmission (A341E).\u003c\/p\u003e","brand":"Tuned By Shawn","offers":[{"title":"Default Title","offer_id":43447219912771,"sku":"HT-650962","price":3785.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0064\/7754\/5539\/files\/Nexus_R3.webp?v=1782228020"},{"product_id":"haltech-nexus-r5-toyota-supra-2jz-gte-toyota-aristo-2jz-gte-1991-1998-plug-n-play-adapter-harness-kit-ht-650963","title":"Haltech Nexus R5 VCU \u0026 Toyota Supra 2JZ-GTE | Toyota Aristo 2JZ-GTE 1991-1998 Plug 'n' Play Adapter Harness Kit - A341E Automatic (HT-650963)","description":"\u003cp\u003e\u003cstrong\u003eThe Supra 2JZ-GTE responds to boost and tuning the factory ECU was never built to deliver.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Toyota Supra 2JZ-GTE and its platform-mates share a factory ECU that prioritizes emissions and averaged-out reliability over what the engine can actually do. The \u003cstrong\u003eTuned By Shawn PNP Wiring Harness Kit for the Haltech Nexus\u003c\/strong\u003e connects directly to your factory harness without any permanent modifications, giving the Haltech Nexus full standalone engine control. No cutting, no splicing, fully reversible.\u003c\/p\u003e\n\u003ch4\u003eAdvantages\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eBoost that builds and holds exactly where you dial it in, not where the factory knock strategy allows\u003c\/li\u003e\n\u003cli\u003eTiming that advances where it should instead of pulling at the first sign of heat\u003c\/li\u003e\n\u003cli\u003ePower delivery that's linear and predictable through the entire boost curve\u003c\/li\u003e\n\u003cli\u003eA tune built around your exact modifications, not averaged factory parameters\u003c\/li\u003e\n\u003cli\u003eConfidence that what happened on the dyno is what happens on the track\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePlug-and-play fitment for 1991-1998 Toyota Supra 2JZ-GTE, automatic transmission (Aisin A341E)\u003c\/li\u003e\n\u003cli\u003eCompatible with Haltech Nexus R3, R5, S2, and S3 ECUs\u003c\/li\u003e\n\u003cli\u003eNo cutting or splicing of factory wiring\u003c\/li\u003e\n\u003cli\u003eOEM-quality connectors, USA-built by Boomslang Fabrication\u003c\/li\u003e\n\u003cli\u003eFully reversible, factory harness preserved\u003c\/li\u003e\n\u003cli\u003eFor competition and off-road use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eThe Details\u003c\/h4\u003e\n\u003cp\u003eBuilt specifically for this vehicle's connector layout with OEM-spec connectors and correct wire gauge throughout. Your factory harness stays completely untouched and the car can return to stock at any time. The Haltech Nexus takes full engine control once installed, giving your tuner a clean vehicle-specific foundation to build a proper map from.\u003c\/p\u003e\n\u003ch4\u003eTransmission\u003c\/h4\u003e\n\u003cp\u003eThe 2JZ-GTE cars did not get the standard A340E. Toyota fitted the \u003cstrong\u003eA341E\u003c\/strong\u003e, the heavy-duty member of the same A340 family, with a longer input shaft and a larger pump and converter to survive the turbo motor's torque. The automatic chassis uses a different engine-bay connector layout than the manual, which is why this harness carries its own part number. Check the code stamped on the transmission ID plate before ordering — if the car is a manual, you want the manual-transmission harness instead.\u003c\/p\u003e\n\u003ch4\u003eKit Includes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e1x Boomslang PNP wiring harness for 1991-1998 Toyota Supra 2JZ-GTE \u003c\/li\u003e\n\u003cli\u003eHaltech Nexus R5 VCU\u003c\/li\u003e\n\u003cli\u003eAir Temp Sensor - Small Thread Thread: M14 x 1.5\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFitment\u003c\/h4\u003e\n\u003cp\u003e1991-1998 Toyota Supra 2JZ-GTE \/ 1991-1998 Toyota Aristo 2JZ-GTE, Automatic Transmission (A341E).\u003c\/p\u003e","brand":"Tuned By Shawn","offers":[{"title":"Default Title","offer_id":43447219945539,"sku":"HT-650963","price":5820.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0064\/7754\/5539\/files\/Nexus_R5.webp?v=1782228019"},{"product_id":"haltech-nexus-s3-toyota-supra-2jz-gte-1993-1998-plug-n-play-adapter-harness-kit-ht-650964","title":"Haltech Nexus S3 ECU \u0026 Toyota Supra 2JZ-GTE 1993-1998 Plug 'n' Play Adapter Harness Kit (HT-650964)","description":"\u003cp\u003e\u003cstrong\u003eThe Supra 2JZ-GTE responds to boost and tuning the factory ECU was never built to deliver.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Toyota Supra 2JZ-GTE is a capable platform, but factory engine management puts a ceiling on what's possible. The \u003cstrong\u003eTuned By Shawn PNP Wiring Harness Kit for the Haltech Nexus\u003c\/strong\u003e connects directly to your factory harness without any permanent modifications, giving the Haltech Nexus full standalone engine control. No cutting, no splicing, fully reversible.\u003c\/p\u003e\n\u003ch4\u003eAdvantages\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eBoost that builds and holds exactly where you dial it in, not where the factory knock strategy allows\u003c\/li\u003e\n\u003cli\u003eTiming that advances where it should instead of pulling at the first sign of heat\u003c\/li\u003e\n\u003cli\u003ePower delivery that's linear and predictable through the entire boost curve\u003c\/li\u003e\n\u003cli\u003eA tune built around your exact modifications, not averaged factory parameters\u003c\/li\u003e\n\u003cli\u003eConfidence that what happened on the dyno is what happens on the track\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePlug-and-play fitment for 1993-1998 Toyota Supra 2JZ-GTE, manual transmission\u003c\/li\u003e\n\u003cli\u003eCompatible with Haltech Nexus R3, R5, S2, and S3 ECUs\u003c\/li\u003e\n\u003cli\u003eNo cutting or splicing of factory wiring\u003c\/li\u003e\n\u003cli\u003eOEM-quality connectors, USA-built by Boomslang Fabrication\u003c\/li\u003e\n\u003cli\u003eFully reversible, factory harness preserved\u003c\/li\u003e\n\u003cli\u003eFor competition and off-road use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eThe Details\u003c\/h4\u003e\n\u003cp\u003eBuilt specifically for this vehicle's connector layout with OEM-spec connectors and correct wire gauge throughout. Your factory harness stays completely untouched and the car can return to stock at any time. The Haltech Nexus takes full engine control once installed, giving your tuner a clean vehicle-specific foundation to build a proper map from.\u003c\/p\u003e\n\u003ch4\u003eKit Includes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e1x Boomslang PNP wiring harness for 1993-1998 Toyota Supra 2JZ-GTE \u003c\/li\u003e\n\u003cli\u003eHaltech Nexus S3 ECU\u003c\/li\u003e\n\u003cli\u003eAir Temp Sensor - Small Thread Thread: M14 x 1.5\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFitment\u003c\/h4\u003e\n\u003cp\u003e1993-1998 Toyota Supra 2JZ-GTE, Manual Transmission.\u003c\/p\u003e","brand":"Tuned By Shawn","offers":[{"title":"Default Title","offer_id":43447219978307,"sku":"HT-650964","price":3465.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0064\/7754\/5539\/files\/HT-213301_00BFv2.png?v=1782007150"},{"product_id":"haltech-nexus-r3-toyota-supra-2jz-gte-1993-1998-plug-n-play-adapter-harness-kit-ht-650965","title":"Haltech Nexus R3 VCU \u0026 Toyota Supra 2JZ-GTE 1993-1998 Plug 'n' Play Adapter Harness Kit (HT-650965)","description":"\u003cp\u003e\u003cstrong\u003eThe Supra 2JZ-GTE responds to boost and tuning the factory ECU was never built to deliver.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Toyota Supra 2JZ-GTE is a capable platform, but factory engine management puts a ceiling on what's possible. The \u003cstrong\u003eTuned By Shawn PNP Wiring Harness Kit for the Haltech Nexus\u003c\/strong\u003e connects directly to your factory harness without any permanent modifications, giving the Haltech Nexus full standalone engine control. No cutting, no splicing, fully reversible.\u003c\/p\u003e\n\u003ch4\u003eAdvantages\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eBoost that builds and holds exactly where you dial it in, not where the factory knock strategy allows\u003c\/li\u003e\n\u003cli\u003eTiming that advances where it should instead of pulling at the first sign of heat\u003c\/li\u003e\n\u003cli\u003ePower delivery that's linear and predictable through the entire boost curve\u003c\/li\u003e\n\u003cli\u003eA tune built around your exact modifications, not averaged factory parameters\u003c\/li\u003e\n\u003cli\u003eConfidence that what happened on the dyno is what happens on the track\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePlug-and-play fitment for 1993-1998 Toyota Supra 2JZ-GTE, manual transmission\u003c\/li\u003e\n\u003cli\u003eCompatible with Haltech Nexus R3, R5, S2, and S3 ECUs\u003c\/li\u003e\n\u003cli\u003eNo cutting or splicing of factory wiring\u003c\/li\u003e\n\u003cli\u003eOEM-quality connectors, USA-built by Boomslang Fabrication\u003c\/li\u003e\n\u003cli\u003eFully reversible, factory harness preserved\u003c\/li\u003e\n\u003cli\u003eFor competition and off-road use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eThe Details\u003c\/h4\u003e\n\u003cp\u003eBuilt specifically for this vehicle's connector layout with OEM-spec connectors and correct wire gauge throughout. Your factory harness stays completely untouched and the car can return to stock at any time. 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The \u003cstrong\u003eTuned By Shawn PNP Wiring Harness Kit for the Haltech Nexus\u003c\/strong\u003e connects directly to your factory harness without any permanent modifications, giving the Haltech Nexus full standalone engine control. No cutting, no splicing, fully reversible.\u003c\/p\u003e\n\u003ch4\u003eAdvantages\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eBoost that builds and holds exactly where you dial it in, not where the factory knock strategy allows\u003c\/li\u003e\n\u003cli\u003eTiming that advances where it should instead of pulling at the first sign of heat\u003c\/li\u003e\n\u003cli\u003ePower delivery that's linear and predictable through the entire boost curve\u003c\/li\u003e\n\u003cli\u003eA tune built around your exact modifications, not averaged factory parameters\u003c\/li\u003e\n\u003cli\u003eConfidence that what happened on the dyno is what happens on the track\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePlug-and-play fitment for 1993-1998 Toyota Supra 2JZ-GTE, manual transmission\u003c\/li\u003e\n\u003cli\u003eCompatible with Haltech Nexus R3, R5, S2, and S3 ECUs\u003c\/li\u003e\n\u003cli\u003eNo cutting or splicing of factory wiring\u003c\/li\u003e\n\u003cli\u003eOEM-quality connectors, USA-built by Boomslang Fabrication\u003c\/li\u003e\n\u003cli\u003eFully reversible, factory harness preserved\u003c\/li\u003e\n\u003cli\u003eFor competition and off-road use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eThe Details\u003c\/h4\u003e\n\u003cp\u003eBuilt specifically for this vehicle's connector layout with OEM-spec connectors and correct wire gauge throughout. Your factory harness stays completely untouched and the car can return to stock at any time. 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The \u003cstrong\u003eTuned By Shawn PNP Wiring Harness Kit for the Haltech Nexus\u003c\/strong\u003e connects directly to your factory harness without any permanent modifications, giving the Haltech Nexus full standalone engine control. 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Your factory harness stays completely untouched and the car can return to stock at any time. The Haltech Nexus takes full engine control once installed, giving your tuner a clean vehicle-specific foundation to build a proper map from.\u003c\/p\u003e\n\u003ch4\u003eTransmission\u003c\/h4\u003e\n\u003cp\u003eThe VVT-i turbo cars run the \u003cstrong\u003eA341E\u003c\/strong\u003e rather than the standard A340E — the heavy-duty version of the same A340 family, built with a larger pump and converter to handle 2JZ-GTE torque. The automatic chassis uses a different engine-bay connector layout than the manual, which is why this harness carries its own part number. 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The \u003cstrong\u003eTuned By Shawn PNP Wiring Harness Kit for the Haltech Nexus\u003c\/strong\u003e connects directly to your factory harness without any permanent modifications, giving the Haltech Nexus full standalone engine control. 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Your factory harness stays completely untouched and the car can return to stock at any time. The Haltech Nexus takes full engine control once installed, giving your tuner a clean vehicle-specific foundation to build a proper map from.\u003c\/p\u003e\n\u003ch4\u003eTransmission\u003c\/h4\u003e\n\u003cp\u003eThe VVT-i turbo cars run the \u003cstrong\u003eA341E\u003c\/strong\u003e rather than the standard A340E — the heavy-duty version of the same A340 family, built with a larger pump and converter to handle 2JZ-GTE torque. The automatic chassis uses a different engine-bay connector layout than the manual, which is why this harness carries its own part number. 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The \u003cstrong\u003eTuned By Shawn PNP Wiring Harness Kit for the Haltech Nexus\u003c\/strong\u003e connects directly to your factory harness without any permanent modifications, giving the Haltech Nexus full standalone engine control. 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No cutting, no splicing, fully reversible.\u003c\/p\u003e\n\u003ch4\u003eAdvantages\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eBoost that builds and holds exactly where you dial it in, not where the factory knock strategy allows\u003c\/li\u003e\n\u003cli\u003eTiming that advances where it should instead of pulling at the first sign of heat\u003c\/li\u003e\n\u003cli\u003ePower delivery that's linear and predictable through the entire boost curve\u003c\/li\u003e\n\u003cli\u003eA tune built around your exact modifications, not averaged factory parameters\u003c\/li\u003e\n\u003cli\u003eConfidence that what happened on the dyno is what happens on the track\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePlug-and-play fitment for 1998-2002 Toyota Supra 2JZ-GTE VVT-i, manual transmission\u003c\/li\u003e\n\u003cli\u003eCompatible with Haltech Nexus R3, R5, S2, and S3 ECUs\u003c\/li\u003e\n\u003cli\u003eNo cutting or splicing of factory wiring\u003c\/li\u003e\n\u003cli\u003eOEM-quality connectors, USA-built by Boomslang Fabrication\u003c\/li\u003e\n\u003cli\u003eFully reversible, factory harness preserved\u003c\/li\u003e\n\u003cli\u003eFor competition and off-road use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eThe Details\u003c\/h4\u003e\n\u003cp\u003eBuilt specifically for this vehicle's connector layout with OEM-spec connectors and correct wire gauge throughout. 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The \u003cstrong\u003eTuned By Shawn PNP Wiring Harness Kit for the Haltech Nexus\u003c\/strong\u003e connects directly to your factory harness without any permanent modifications, giving the Haltech Nexus full standalone engine control. No cutting, no splicing, fully reversible.\u003c\/p\u003e\n\u003ch4\u003eAdvantages\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eBoost that builds and holds exactly where you dial it in, not where the factory knock strategy allows\u003c\/li\u003e\n\u003cli\u003eTiming that advances where it should instead of pulling at the first sign of heat\u003c\/li\u003e\n\u003cli\u003ePower delivery that's linear and predictable through the entire boost curve\u003c\/li\u003e\n\u003cli\u003eA tune built around your exact modifications, not averaged factory parameters\u003c\/li\u003e\n\u003cli\u003eConfidence that what happened on the dyno is what happens on the track\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePlug-and-play fitment for 1998-2002 Toyota Supra 2JZ-GTE VVT-i, manual transmission\u003c\/li\u003e\n\u003cli\u003eCompatible with Haltech Nexus R3, R5, S2, and S3 ECUs\u003c\/li\u003e\n\u003cli\u003eNo cutting or splicing of factory wiring\u003c\/li\u003e\n\u003cli\u003eOEM-quality connectors, USA-built by Boomslang Fabrication\u003c\/li\u003e\n\u003cli\u003eFully reversible, factory harness preserved\u003c\/li\u003e\n\u003cli\u003eFor competition and off-road use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eThe Details\u003c\/h4\u003e\n\u003cp\u003eBuilt specifically for this vehicle's connector layout with OEM-spec connectors and correct wire gauge throughout. 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The \u003cstrong\u003eTuned By Shawn PNP Wiring Harness Kit for the Haltech Nexus\u003c\/strong\u003e connects directly to your factory harness without any permanent modifications, giving the Haltech Nexus full standalone engine control. No cutting, no splicing, fully reversible.\u003c\/p\u003e\n\u003ch4\u003eAdvantages\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eBoost that builds and holds exactly where you dial it in, not where the factory knock strategy allows\u003c\/li\u003e\n\u003cli\u003eTiming that advances where it should instead of pulling at the first sign of heat\u003c\/li\u003e\n\u003cli\u003ePower delivery that's linear and predictable through the entire boost curve\u003c\/li\u003e\n\u003cli\u003eA tune built around your exact modifications, not averaged factory parameters\u003c\/li\u003e\n\u003cli\u003eConfidence that what happened on the dyno is what happens on the track\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePlug-and-play fitment for 1998-2004 Toyota Aristo 2JZ-GTE VVT-i, all transmissions\u003c\/li\u003e\n\u003cli\u003eCompatible with Haltech Nexus R3, R5, S2, and S3 ECUs\u003c\/li\u003e\n\u003cli\u003eNo cutting or splicing of factory wiring\u003c\/li\u003e\n\u003cli\u003eOEM-quality connectors, USA-built by Boomslang Fabrication\u003c\/li\u003e\n\u003cli\u003eFully reversible, factory harness preserved\u003c\/li\u003e\n\u003cli\u003eFor competition and off-road use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eThe Details\u003c\/h4\u003e\n\u003cp\u003eBuilt specifically for this vehicle's connector layout with OEM-spec connectors and correct wire gauge throughout. 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The \u003cstrong\u003eTuned By Shawn PNP Wiring Harness Kit for the Haltech Nexus\u003c\/strong\u003e connects directly to your factory harness without any permanent modifications, giving the Haltech Nexus full standalone engine control. No cutting, no splicing, fully reversible.\u003c\/p\u003e\n\u003ch4\u003eAdvantages\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eBoost that builds and holds exactly where you dial it in, not where the factory knock strategy allows\u003c\/li\u003e\n\u003cli\u003eTiming that advances where it should instead of pulling at the first sign of heat\u003c\/li\u003e\n\u003cli\u003ePower delivery that's linear and predictable through the entire boost curve\u003c\/li\u003e\n\u003cli\u003eA tune built around your exact modifications, not averaged factory parameters\u003c\/li\u003e\n\u003cli\u003eConfidence that what happened on the dyno is what happens on the track\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePlug-and-play fitment for 1998-2004 Toyota Aristo 2JZ-GTE VVT-i, all transmissions\u003c\/li\u003e\n\u003cli\u003eCompatible with Haltech Nexus R3, R5, S2, and S3 ECUs\u003c\/li\u003e\n\u003cli\u003eNo cutting or splicing of factory wiring\u003c\/li\u003e\n\u003cli\u003eOEM-quality connectors, USA-built by Boomslang Fabrication\u003c\/li\u003e\n\u003cli\u003eFully reversible, factory harness preserved\u003c\/li\u003e\n\u003cli\u003eFor competition and off-road use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eThe Details\u003c\/h4\u003e\n\u003cp\u003eBuilt specifically for this vehicle's connector layout with OEM-spec connectors and correct wire gauge throughout. 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The \u003cstrong\u003eTuned By Shawn PNP Wiring Harness Kit for the Haltech Nexus\u003c\/strong\u003e connects directly to your factory harness without any permanent modifications, giving the Haltech Nexus full standalone engine control. 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The \u003cstrong\u003eTuned By Shawn PNP Wiring Harness Kit for the Haltech Nexus\u003c\/strong\u003e connects directly to your factory harness without any permanent modifications, giving the Haltech Nexus full standalone engine control. No cutting, no splicing, fully reversible.\u003c\/p\u003e\n\u003ch4\u003eAdvantages\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePower delivery that's smooth and consistent across the full torque curve\u003c\/li\u003e\n\u003cli\u003eFuel and ignition timing calibrated to your actual modifications, not Toyota's conservative baseline\u003c\/li\u003e\n\u003cli\u003eIdle stability that's locked in regardless of temperature\u003c\/li\u003e\n\u003cli\u003eConsistent engine behavior across temperature ranges\u003c\/li\u003e\n\u003cli\u003eA proper tuning foundation for this specific chassis\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePlug-and-play fitment for 1992-1997 Lexus SC300 2JZ-GE, automatic transmission (Aisin A340E)\u003c\/li\u003e\n\u003cli\u003eCompatible with Haltech Nexus R3, R5, S2, and S3 ECUs\u003c\/li\u003e\n\u003cli\u003eNo cutting or splicing of factory wiring\u003c\/li\u003e\n\u003cli\u003eOEM-quality connectors, USA-built by Boomslang Fabrication\u003c\/li\u003e\n\u003cli\u003eFully reversible, factory harness preserved\u003c\/li\u003e\n\u003cli\u003eFor competition and off-road use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eThe Details\u003c\/h4\u003e\n\u003cp\u003eBuilt specifically for this vehicle's connector layout with OEM-spec connectors and correct wire gauge throughout. 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The \u003cstrong\u003eTuned By Shawn PNP Wiring Harness Kit for the Haltech Nexus\u003c\/strong\u003e connects directly to your factory harness without any permanent modifications, giving the Haltech Nexus full standalone engine control. No cutting, no splicing, fully reversible.\u003c\/p\u003e\n\u003ch4\u003eAdvantages\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePower delivery that's smooth and consistent across the full torque curve\u003c\/li\u003e\n\u003cli\u003eFuel and ignition timing calibrated to your actual modifications, not Toyota's conservative baseline\u003c\/li\u003e\n\u003cli\u003eIdle stability that's locked in regardless of temperature\u003c\/li\u003e\n\u003cli\u003eConsistent engine behavior across temperature ranges\u003c\/li\u003e\n\u003cli\u003eA proper tuning foundation for this specific chassis\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePlug-and-play fitment for 1992-1997 Lexus SC300 2JZ-GE, automatic transmission (Aisin A340E)\u003c\/li\u003e\n\u003cli\u003eCompatible with Haltech Nexus R3, R5, S2, and S3 ECUs\u003c\/li\u003e\n\u003cli\u003eNo cutting or splicing of factory wiring\u003c\/li\u003e\n\u003cli\u003eOEM-quality connectors, USA-built by Boomslang Fabrication\u003c\/li\u003e\n\u003cli\u003eFully reversible, factory harness preserved\u003c\/li\u003e\n\u003cli\u003eFor competition and off-road use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eThe Details\u003c\/h4\u003e\n\u003cp\u003eBuilt specifically for this vehicle's connector layout with OEM-spec connectors and correct wire gauge throughout. Your factory harness stays completely untouched and the vehicle can return to stock at any time. In automatic transmission applications, the factory ECU remains in parallel for transmission control while the Haltech Nexus manages the engine.\u003c\/p\u003e\n\u003ch4\u003eTransmission\u003c\/h4\u003e\n\u003cp\u003eThe automatic cars run the \u003cstrong\u003eA340E\u003c\/strong\u003e, Aisin's electronically controlled four-speed used across Toyota's longitudinal rear-drive platforms. The automatic chassis uses a different engine-bay connector layout than the manual, which is why this harness carries its own part number. 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The \u003cstrong\u003eTuned By Shawn PNP Wiring Harness Kit for the Haltech Nexus\u003c\/strong\u003e connects directly to your factory harness without any permanent modifications, giving the Haltech Nexus full standalone engine control. No cutting, no splicing, fully reversible.\u003c\/p\u003e\n\u003ch4\u003eAdvantages\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePower delivery that's smooth and consistent across the full torque curve\u003c\/li\u003e\n\u003cli\u003eFuel and ignition timing calibrated to your actual modifications, not Toyota's conservative baseline\u003c\/li\u003e\n\u003cli\u003eIdle stability that's locked in regardless of temperature\u003c\/li\u003e\n\u003cli\u003eConsistent engine behavior across temperature ranges\u003c\/li\u003e\n\u003cli\u003eA proper tuning foundation for this specific chassis\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePlug-and-play fitment for 1992-1997 Lexus SC300 2JZ-GE, automatic transmission (Aisin A340E)\u003c\/li\u003e\n\u003cli\u003eCompatible with Haltech Nexus R3, R5, S2, and S3 ECUs\u003c\/li\u003e\n\u003cli\u003eNo cutting or splicing of factory wiring\u003c\/li\u003e\n\u003cli\u003eOEM-quality connectors, USA-built by Boomslang Fabrication\u003c\/li\u003e\n\u003cli\u003eFully reversible, factory harness preserved\u003c\/li\u003e\n\u003cli\u003eFor competition and off-road use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eThe Details\u003c\/h4\u003e\n\u003cp\u003eBuilt specifically for this vehicle's connector layout with OEM-spec connectors and correct wire gauge throughout. Your factory harness stays completely untouched and the vehicle can return to stock at any time. In automatic transmission applications, the factory ECU remains in parallel for transmission control while the Haltech Nexus manages the engine.\u003c\/p\u003e\n\u003ch4\u003eTransmission\u003c\/h4\u003e\n\u003cp\u003eThe automatic cars run the \u003cstrong\u003eA340E\u003c\/strong\u003e, Aisin's electronically controlled four-speed used across Toyota's longitudinal rear-drive platforms. The automatic chassis uses a different engine-bay connector layout than the manual, which is why this harness carries its own part number. Check the code stamped on the transmission ID plate before ordering — if the car is a manual, you want the manual-transmission harness instead.\u003c\/p\u003e\n\u003ch4\u003eKit Includes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e1x Boomslang PNP wiring harness for 1992-1997 Lexus SC300 2JZ-GE\u003c\/li\u003e\n\u003cli\u003eHaltech Nexus S3 ECU\u003c\/li\u003e\n\u003cli\u003eAir Temp Sensor - Small Thread Thread: M14 x 1.5\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFitment\u003c\/h4\u003e\n\u003cp\u003e1992-1997 Lexus SC300 \/ 1992-1997 Toyota Supra 2JZ-GE, Automatic Transmission (A340E).\u003c\/p\u003e","brand":"Tuned By Shawn","offers":[{"title":"Default Title","offer_id":43447296917571,"sku":"HT-651372","price":3465.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0064\/7754\/5539\/files\/HT-213301_00BFv2.png?v=1782007150"},{"product_id":"haltech-nexus-r3-lexus-sc300-toyota-supra-2jz-ge-1992-1997-plug-n-play-adapter-harness-kit-ht-651373","title":"Haltech Nexus R3 VCU \u0026 Lexus SC300 | Toyota Supra 2JZ-GE 1992-1997 Plug 'n' Play Adapter Harness Kit (HT-651373)","description":"\u003cp\u003e\u003cstrong\u003eThe SC300 2JZ-GE is one of the most respected inline-six platforms in the tuning world, and standalone ECU support for the manual transmission variant starts here.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Lexus SC300 2JZ-GE platform has a strong tuning community, and standalone ECU support opens what the factory management keeps locked down. The \u003cstrong\u003eTuned By Shawn PNP Wiring Harness Kit for the Haltech Nexus\u003c\/strong\u003e connects directly to your factory harness without any permanent modifications, giving the Haltech Nexus full standalone engine control. No cutting, no splicing, fully reversible.\u003c\/p\u003e\n\u003ch4\u003eAdvantages\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePower delivery that's smooth and consistent across the full torque curve\u003c\/li\u003e\n\u003cli\u003eFuel and ignition timing calibrated to your actual modifications, not Toyota's conservative baseline\u003c\/li\u003e\n\u003cli\u003eIdle stability that's locked in regardless of temperature\u003c\/li\u003e\n\u003cli\u003eConsistent engine behavior across temperature ranges\u003c\/li\u003e\n\u003cli\u003eA proper tuning foundation for this specific chassis\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePlug-and-play fitment for 1992-1997 Lexus SC300 2JZ-GE, manual transmission\u003c\/li\u003e\n\u003cli\u003eCompatible with Haltech Nexus R3, R5, S2, and S3 ECUs\u003c\/li\u003e\n\u003cli\u003eNo cutting or splicing of factory wiring\u003c\/li\u003e\n\u003cli\u003eOEM-quality connectors, USA-built by Boomslang Fabrication\u003c\/li\u003e\n\u003cli\u003eFully reversible, factory harness preserved\u003c\/li\u003e\n\u003cli\u003eFor competition and off-road use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eThe Details\u003c\/h4\u003e\n\u003cp\u003eBuilt specifically for this vehicle's connector layout with OEM-spec connectors and correct wire gauge throughout. Your factory harness stays completely untouched and the car can return to stock at any time. The Haltech Nexus takes full engine control once installed, giving your tuner a clean vehicle-specific foundation to build a proper map from.\u003c\/p\u003e\n\u003ch4\u003eKit Includes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e1x Boomslang PNP wiring harness for 1992-1997 Lexus SC300 2JZ-GE\u003c\/li\u003e\n\u003cli\u003eHaltech Nexus R3 VCU\u003c\/li\u003e\n\u003cli\u003eAir Temp Sensor - Small Thread Thread: M14 x 1.5\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFitment\u003c\/h4\u003e\n\u003cp\u003e1992-1997 Lexus SC300 \/ 1992-1997 Toyota Supra 2JZ-GE, Manual Transmission.\u003c\/p\u003e","brand":"Tuned By Shawn","offers":[{"title":"Default Title","offer_id":43447296950339,"sku":"HT-651373","price":3785.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0064\/7754\/5539\/files\/Nexus_R3.webp?v=1782228020"},{"product_id":"haltech-nexus-r5-lexus-sc300-toyota-supra-2jz-ge-1992-1997-plug-n-play-adapter-harness-kit-ht-651374","title":"Haltech Nexus R5 VCU \u0026 Lexus SC300 | Toyota Supra 2JZ-GE 1992-1997 Plug 'n' Play Adapter Harness Kit (HT-651374)","description":"\u003cp\u003e\u003cstrong\u003eThe SC300 2JZ-GE is one of the most respected inline-six platforms in the tuning world, and standalone ECU support for the manual transmission variant starts here.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Lexus SC300 2JZ-GE platform has a strong tuning community, and standalone ECU support opens what the factory management keeps locked down. The \u003cstrong\u003eTuned By Shawn PNP Wiring Harness Kit for the Haltech Nexus\u003c\/strong\u003e connects directly to your factory harness without any permanent modifications, giving the Haltech Nexus full standalone engine control. No cutting, no splicing, fully reversible.\u003c\/p\u003e\n\u003ch4\u003eAdvantages\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePower delivery that's smooth and consistent across the full torque curve\u003c\/li\u003e\n\u003cli\u003eFuel and ignition timing calibrated to your actual modifications, not Toyota's conservative baseline\u003c\/li\u003e\n\u003cli\u003eIdle stability that's locked in regardless of temperature\u003c\/li\u003e\n\u003cli\u003eConsistent engine behavior across temperature ranges\u003c\/li\u003e\n\u003cli\u003eA proper tuning foundation for this specific chassis\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePlug-and-play fitment for 1992-1997 Lexus SC300 2JZ-GE, manual transmission\u003c\/li\u003e\n\u003cli\u003eCompatible with Haltech Nexus R3, R5, S2, and S3 ECUs\u003c\/li\u003e\n\u003cli\u003eNo cutting or splicing of factory wiring\u003c\/li\u003e\n\u003cli\u003eOEM-quality connectors, USA-built by Boomslang Fabrication\u003c\/li\u003e\n\u003cli\u003eFully reversible, factory harness preserved\u003c\/li\u003e\n\u003cli\u003eFor competition and off-road use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eThe Details\u003c\/h4\u003e\n\u003cp\u003eBuilt specifically for this vehicle's connector layout with OEM-spec connectors and correct wire gauge throughout. Your factory harness stays completely untouched and the car can return to stock at any time. The Haltech Nexus takes full engine control once installed, giving your tuner a clean vehicle-specific foundation to build a proper map from.\u003c\/p\u003e\n\u003ch4\u003eKit Includes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e1x Boomslang PNP wiring harness for 1992-1997 Lexus SC300 2JZ-GE\u003c\/li\u003e\n\u003cli\u003eHaltech Nexus R5 VCU\u003c\/li\u003e\n\u003cli\u003eAir Temp Sensor - Small Thread Thread: M14 x 1.5\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFitment\u003c\/h4\u003e\n\u003cp\u003e1992-1997 Lexus SC300 \/ 1992-1997 Toyota Supra 2JZ-GE, Manual Transmission.\u003c\/p\u003e","brand":"Tuned By Shawn","offers":[{"title":"Default Title","offer_id":43447296983107,"sku":"HT-651374","price":5820.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0064\/7754\/5539\/files\/Nexus_R5.webp?v=1782228019"},{"product_id":"haltech-nexus-s3-lexus-sc300-toyota-supra-2jz-ge-1992-1997-plug-n-play-adapter-harness-kit-ht-651375","title":"Haltech Nexus S3 ECU \u0026 Lexus SC300 | Toyota Supra 2JZ-GE 1992-1997 Plug 'n' Play Adapter Harness Kit (HT-651375)","description":"\u003cp\u003e\u003cstrong\u003eThe SC300 2JZ-GE is one of the most respected inline-six platforms in the tuning world, and standalone ECU support for the manual transmission variant starts here.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Lexus SC300 2JZ-GE platform has a strong tuning community, and standalone ECU support opens what the factory management keeps locked down. The \u003cstrong\u003eTuned By Shawn PNP Wiring Harness Kit for the Haltech Nexus\u003c\/strong\u003e connects directly to your factory harness without any permanent modifications, giving the Haltech Nexus full standalone engine control. No cutting, no splicing, fully reversible.\u003c\/p\u003e\n\u003ch4\u003eAdvantages\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePower delivery that's smooth and consistent across the full torque curve\u003c\/li\u003e\n\u003cli\u003eFuel and ignition timing calibrated to your actual modifications, not Toyota's conservative baseline\u003c\/li\u003e\n\u003cli\u003eIdle stability that's locked in regardless of temperature\u003c\/li\u003e\n\u003cli\u003eConsistent engine behavior across temperature ranges\u003c\/li\u003e\n\u003cli\u003eA proper tuning foundation for this specific chassis\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePlug-and-play fitment for 1992-1997 Lexus SC300 2JZ-GE, manual transmission\u003c\/li\u003e\n\u003cli\u003eCompatible with Haltech Nexus R3, R5, S2, and S3 ECUs\u003c\/li\u003e\n\u003cli\u003eNo cutting or splicing of factory wiring\u003c\/li\u003e\n\u003cli\u003eOEM-quality connectors, USA-built by Boomslang Fabrication\u003c\/li\u003e\n\u003cli\u003eFully reversible, factory harness preserved\u003c\/li\u003e\n\u003cli\u003eFor competition and off-road use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eThe Details\u003c\/h4\u003e\n\u003cp\u003eBuilt specifically for this vehicle's connector layout with OEM-spec connectors and correct wire gauge throughout. Your factory harness stays completely untouched and the car can return to stock at any time. The Haltech Nexus takes full engine control once installed, giving your tuner a clean vehicle-specific foundation to build a proper map from.\u003c\/p\u003e\n\u003ch4\u003eKit Includes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e1x Boomslang PNP wiring harness for 1992-1997 Lexus SC300 2JZ-GE\u003c\/li\u003e\n\u003cli\u003eHaltech Nexus S3 ECU\u003c\/li\u003e\n\u003cli\u003eAir Temp Sensor - Small Thread Thread: M14 x 1.5\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFitment\u003c\/h4\u003e\n\u003cp\u003e1992-1997 Lexus SC300 \/ 1992-1997 Toyota Supra 2JZ-GE, Manual Transmission.\u003c\/p\u003e","brand":"Tuned By Shawn","offers":[{"title":"Default Title","offer_id":43447297736771,"sku":"HT-651375","price":3465.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0064\/7754\/5539\/files\/HT-213301_00BFv2.png?v=1782007150"},{"product_id":"haltech-nexus-r3-lexus-gs300-lexus-is300-more-1998-2001-plug-n-play-adapter-harness-kit-ht-651379","title":"Haltech Nexus R3 VCU \u0026 Lexus GS300 | Lexus IS300 \u0026 more 1998-2001 Plug 'n' Play Adapter Harness Kit (HT-651379)","description":"\u003cp\u003e\u003cstrong\u003eThe GS300 2JZ-GE is the inline-six platform everyone knows, and standalone ECU support for the GS300 chassis is a natural extension of that.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Lexus GS300 2JZ-GE platform has a strong tuning community, and standalone ECU support opens what the factory management keeps locked down. The \u003cstrong\u003eTuned By Shawn PNP Wiring Harness Kit for the Haltech Nexus\u003c\/strong\u003e connects directly to your factory harness without any permanent modifications, giving the Haltech Nexus full standalone engine control. No cutting, no splicing, fully reversible.\u003c\/p\u003e\n\u003ch4\u003eAdvantages\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePower delivery that's smooth and consistent across the full torque curve\u003c\/li\u003e\n\u003cli\u003eFuel and ignition timing calibrated to your actual modifications, not Toyota's conservative baseline\u003c\/li\u003e\n\u003cli\u003eIdle stability that's locked in regardless of temperature\u003c\/li\u003e\n\u003cli\u003eConsistent engine behavior across temperature ranges\u003c\/li\u003e\n\u003cli\u003eA proper tuning foundation for this specific chassis\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePlug-and-play fitment for 1998-2001 Lexus GS300 2JZ-GE, all transmission types\u003c\/li\u003e\n\u003cli\u003eCompatible with Haltech Nexus R3, R5, S2, and S3 ECUs\u003c\/li\u003e\n\u003cli\u003eNo cutting or splicing of factory wiring\u003c\/li\u003e\n\u003cli\u003eOEM-quality connectors, USA-built by Boomslang Fabrication\u003c\/li\u003e\n\u003cli\u003eFully reversible, factory harness preserved\u003c\/li\u003e\n\u003cli\u003eFor competition and off-road use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eThe Details\u003c\/h4\u003e\n\u003cp\u003eBuilt specifically for this vehicle's connector layout with OEM-spec connectors and correct wire gauge throughout. Your factory harness stays completely untouched and the vehicle can return to stock at any time. In automatic transmission applications, the factory ECU remains in parallel for transmission control while the Haltech Nexus manages the engine.\u003c\/p\u003e\n\u003ch4\u003eKit Includes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e1x Boomslang PNP wiring harness for 1998-2001 Lexus GS300 2JZ-GE\u003c\/li\u003e\n\u003cli\u003eHaltech Nexus R3 VCU\u003c\/li\u003e\n\u003cli\u003eAir Temp Sensor - Small Thread Thread: M14 x 1.5\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFitment\u003c\/h4\u003e\n\u003cp\u003e1998-2001 Lexus GS300 \/ 1998-2001 Lexus IS300 \/ 1998-2001 Lexus SC300 \/ 1998-2001 Toyota Aristo 2JZ-GE VVT-i \/ 1998-2001 Toyota Supra 2JZ-GE, All Transmission Types.\u003c\/p\u003e","brand":"Tuned By Shawn","offers":[{"title":"Default Title","offer_id":43447299735619,"sku":"HT-651379","price":3545.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0064\/7754\/5539\/files\/Nexus_R3.webp?v=1782228020"},{"product_id":"haltech-nexus-r5-lexus-gs300-lexus-is300-more-1998-2001-plug-n-play-adapter-harness-kit-ht-651380","title":"Haltech Nexus R5 VCU \u0026 Lexus GS300 | Lexus IS300 \u0026 more 1998-2001 Plug 'n' Play Adapter Harness Kit (HT-651380)","description":"\u003cp\u003e\u003cstrong\u003eThe GS300 2JZ-GE is the inline-six platform everyone knows, and standalone ECU support for the GS300 chassis is a natural extension of that.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Lexus GS300 2JZ-GE platform has a strong tuning community, and standalone ECU support opens what the factory management keeps locked down. The \u003cstrong\u003eTuned By Shawn PNP Wiring Harness Kit for the Haltech Nexus\u003c\/strong\u003e connects directly to your factory harness without any permanent modifications, giving the Haltech Nexus full standalone engine control. No cutting, no splicing, fully reversible.\u003c\/p\u003e\n\u003ch4\u003eAdvantages\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePower delivery that's smooth and consistent across the full torque curve\u003c\/li\u003e\n\u003cli\u003eFuel and ignition timing calibrated to your actual modifications, not Toyota's conservative baseline\u003c\/li\u003e\n\u003cli\u003eIdle stability that's locked in regardless of temperature\u003c\/li\u003e\n\u003cli\u003eConsistent engine behavior across temperature ranges\u003c\/li\u003e\n\u003cli\u003eA proper tuning foundation for this specific chassis\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePlug-and-play fitment for 1998-2001 Lexus GS300 2JZ-GE, all transmission types\u003c\/li\u003e\n\u003cli\u003eCompatible with Haltech Nexus R3, R5, S2, and S3 ECUs\u003c\/li\u003e\n\u003cli\u003eNo cutting or splicing of factory wiring\u003c\/li\u003e\n\u003cli\u003eOEM-quality connectors, USA-built by Boomslang Fabrication\u003c\/li\u003e\n\u003cli\u003eFully reversible, factory harness preserved\u003c\/li\u003e\n\u003cli\u003eFor competition and off-road use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eThe Details\u003c\/h4\u003e\n\u003cp\u003eBuilt specifically for this vehicle's connector layout with OEM-spec connectors and correct wire gauge throughout. Your factory harness stays completely untouched and the vehicle can return to stock at any time. In automatic transmission applications, the factory ECU remains in parallel for transmission control while the Haltech Nexus manages the engine.\u003c\/p\u003e\n\u003ch4\u003eKit Includes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e1x Boomslang PNP wiring harness for 1998-2001 Lexus GS300 2JZ-GE\u003c\/li\u003e\n\u003cli\u003eHaltech Nexus R5 VCU\u003c\/li\u003e\n\u003cli\u003eAir Temp Sensor - Small Thread Thread: M14 x 1.5\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFitment\u003c\/h4\u003e\n\u003cp\u003e1998-2001 Lexus GS300 \/ 1998-2001 Lexus IS300 \/ 1998-2001 Lexus SC300 \/ 1998-2001 Toyota Aristo 2JZ-GE VVT-i \/ 1998-2001 Toyota Supra 2JZ-GE, All Transmission Types.\u003c\/p\u003e","brand":"Tuned By Shawn","offers":[{"title":"Default Title","offer_id":43447299768387,"sku":"HT-651380","price":5535.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0064\/7754\/5539\/files\/Nexus_R5.webp?v=1782228019"},{"product_id":"haltech-nexus-s3-lexus-gs300-lexus-is300-more-1998-2001-plug-n-play-adapter-harness-kit-ht-651381","title":"Haltech Nexus S3 ECU \u0026 Lexus GS300 | Lexus IS300 \u0026 more 1998-2001 Plug 'n' Play Adapter Harness Kit (HT-651381)","description":"\u003cp\u003e\u003cstrong\u003eThe GS300 2JZ-GE is the inline-six platform everyone knows, and standalone ECU support for the GS300 chassis is a natural extension of that.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Lexus GS300 2JZ-GE platform has a strong tuning community, and standalone ECU support opens what the factory management keeps locked down. The \u003cstrong\u003eTuned By Shawn PNP Wiring Harness Kit for the Haltech Nexus\u003c\/strong\u003e connects directly to your factory harness without any permanent modifications, giving the Haltech Nexus full standalone engine control. No cutting, no splicing, fully reversible.\u003c\/p\u003e\n\u003ch4\u003eAdvantages\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePower delivery that's smooth and consistent across the full torque curve\u003c\/li\u003e\n\u003cli\u003eFuel and ignition timing calibrated to your actual modifications, not Toyota's conservative baseline\u003c\/li\u003e\n\u003cli\u003eIdle stability that's locked in regardless of temperature\u003c\/li\u003e\n\u003cli\u003eConsistent engine behavior across temperature ranges\u003c\/li\u003e\n\u003cli\u003eA proper tuning foundation for this specific chassis\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePlug-and-play fitment for 1998-2001 Lexus GS300 2JZ-GE, all transmission types\u003c\/li\u003e\n\u003cli\u003eCompatible with Haltech Nexus R3, R5, S2, and S3 ECUs\u003c\/li\u003e\n\u003cli\u003eNo cutting or splicing of factory wiring\u003c\/li\u003e\n\u003cli\u003eOEM-quality connectors, USA-built by Boomslang Fabrication\u003c\/li\u003e\n\u003cli\u003eFully reversible, factory harness preserved\u003c\/li\u003e\n\u003cli\u003eFor competition and off-road use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eThe Details\u003c\/h4\u003e\n\u003cp\u003eBuilt specifically for this vehicle's connector layout with OEM-spec connectors and correct wire gauge throughout. 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The \u003cstrong\u003eTuned By Shawn PNP Wiring Harness Kit for the Haltech Nexus\u003c\/strong\u003e connects directly to your factory harness without any permanent modifications, giving the Haltech Nexus full standalone engine control. No cutting, no splicing, fully reversible.\u003c\/p\u003e\n\u003ch4\u003eAdvantages\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eThrottle response that's precise and proportional\u003c\/li\u003e\n\u003cli\u003eFuel and ignition timing calibrated to your actual modifications, not Toyota's conservative baseline\u003c\/li\u003e\n\u003cli\u003eIdle stability that's locked in regardless of temperature\u003c\/li\u003e\n\u003cli\u003eConsistent engine behavior across temperature ranges\u003c\/li\u003e\n\u003cli\u003eA proper tuning foundation for this specific chassis\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePlug-and-play fitment for 2002-2005 Lexus GS300 3GR-FSE, all transmission types\u003c\/li\u003e\n\u003cli\u003eCompatible with Haltech Nexus R3, R5, S2, and S3 ECUs\u003c\/li\u003e\n\u003cli\u003eNo cutting or splicing of factory wiring\u003c\/li\u003e\n\u003cli\u003eOEM-quality connectors, USA-built by Boomslang Fabrication\u003c\/li\u003e\n\u003cli\u003eFully reversible, factory harness preserved\u003c\/li\u003e\n\u003cli\u003eFor competition and off-road use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eThe Details\u003c\/h4\u003e\n\u003cp\u003eBuilt specifically for this vehicle's connector layout with OEM-spec connectors and correct wire gauge throughout. Your factory harness stays completely untouched and the vehicle can return to stock at any time. In automatic transmission applications, the factory ECU remains in parallel for transmission control while the Haltech Nexus manages the engine.\u003c\/p\u003e\n\u003ch4\u003eKit Includes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e1x Boomslang PNP wiring harness for 2002-2005 Lexus GS300 3GR-FSE\u003c\/li\u003e\n\u003cli\u003eHaltech Nexus R3 VCU\u003c\/li\u003e\n\u003cli\u003eAir Temp Sensor - Small Thread Thread: M14 x 1.5\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFitment\u003c\/h4\u003e\n\u003cp\u003e2002-2005 Lexus GS300 \/ 2002-2005 Lexus IS300, All Transmission Types.\u003c\/p\u003e","brand":"Tuned By Shawn","offers":[{"title":"Default Title","offer_id":43447299997763,"sku":"HT-651385","price":3545.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0064\/7754\/5539\/files\/Nexus_R3.webp?v=1782228020"},{"product_id":"haltech-nexus-r5-lexus-gs300-lexus-is300-2002-2005-plug-n-play-adapter-harness-kit-ht-651386","title":"Haltech Nexus R5 VCU \u0026 Lexus GS300 | Lexus IS300 2002-2005 Plug 'n' Play Adapter Harness Kit (HT-651386)","description":"\u003cp\u003e\u003cstrong\u003eThe 2005 GS300 3GR-FSE is a capable V6 platform that benefits from proper standalone engine management.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Lexus GS300 3GR-FSE platform has a strong tuning community, and standalone ECU support opens what the factory management keeps locked down. The \u003cstrong\u003eTuned By Shawn PNP Wiring Harness Kit for the Haltech Nexus\u003c\/strong\u003e connects directly to your factory harness without any permanent modifications, giving the Haltech Nexus full standalone engine control. No cutting, no splicing, fully reversible.\u003c\/p\u003e\n\u003ch4\u003eAdvantages\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eThrottle response that's precise and proportional\u003c\/li\u003e\n\u003cli\u003eFuel and ignition timing calibrated to your actual modifications, not Toyota's conservative baseline\u003c\/li\u003e\n\u003cli\u003eIdle stability that's locked in regardless of temperature\u003c\/li\u003e\n\u003cli\u003eConsistent engine behavior across temperature ranges\u003c\/li\u003e\n\u003cli\u003eA proper tuning foundation for this specific chassis\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePlug-and-play fitment for 2002-2005 Lexus GS300 3GR-FSE, all transmission types\u003c\/li\u003e\n\u003cli\u003eCompatible with Haltech Nexus R3, R5, S2, and S3 ECUs\u003c\/li\u003e\n\u003cli\u003eNo cutting or splicing of factory wiring\u003c\/li\u003e\n\u003cli\u003eOEM-quality connectors, USA-built by Boomslang Fabrication\u003c\/li\u003e\n\u003cli\u003eFully reversible, factory harness preserved\u003c\/li\u003e\n\u003cli\u003eFor competition and off-road use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eThe Details\u003c\/h4\u003e\n\u003cp\u003eBuilt specifically for this vehicle's connector layout with OEM-spec connectors and correct wire gauge throughout. Your factory harness stays completely untouched and the vehicle can return to stock at any time. In automatic transmission applications, the factory ECU remains in parallel for transmission control while the Haltech Nexus manages the engine.\u003c\/p\u003e\n\u003ch4\u003eKit Includes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e1x Boomslang PNP wiring harness for 2002-2005 Lexus GS300 3GR-FSE\u003c\/li\u003e\n\u003cli\u003eHaltech Nexus R5 VCU\u003c\/li\u003e\n\u003cli\u003eAir Temp Sensor - Small Thread Thread: M14 x 1.5\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFitment\u003c\/h4\u003e\n\u003cp\u003e2002-2005 Lexus GS300 \/ 2002-2005 Lexus IS300, All Transmission Types.\u003c\/p\u003e","brand":"Tuned By Shawn","offers":[{"title":"Default Title","offer_id":43447300030531,"sku":"HT-651386","price":5535.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0064\/7754\/5539\/files\/Nexus_R5.webp?v=1782228019"},{"product_id":"haltech-nexus-s3-lexus-gs300-lexus-is300-2002-2005-plug-n-play-adapter-harness-kit-ht-651387","title":"Haltech Nexus S3 ECU \u0026 Lexus GS300 | Lexus IS300 2002-2005 Plug 'n' Play Adapter Harness Kit (HT-651387)","description":"\u003cp\u003e\u003cstrong\u003eThe 2005 GS300 2JZ-GE VVT-i is a capable V6 platform that benefits from proper standalone engine management.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Lexus GS300 2JZ-GE VVT-i platform has a strong tuning community, and standalone ECU support opens what the factory management keeps locked down. The \u003cstrong\u003eTuned By Shawn PNP Wiring Harness Kit for the Haltech Nexus\u003c\/strong\u003e connects directly to your factory harness without any permanent modifications, giving the Haltech Nexus full standalone engine control. 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It is a fully reversible adapter that gives the Haltech standalone full control of your engine without permanent modifications to your wiring. Up and running quickly, with the factory loom preserved.\u003c\/p\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eOEM-quality connectors and correct gauge wiring throughout\u003c\/li\u003e\n\u003cli\u003ePlug-and-play fitment with no cutting or splicing of factory wiring\u003c\/li\u003e\n\u003cli\u003eFully reversible, factory harness preserved\u003c\/li\u003e\n\u003cli\u003eBuilt for the Haltech Nexus platform\u003c\/li\u003e\n\u003cli\u003eCompatible with the Haltech Nexus S3 ECU\u003c\/li\u003e\n\u003cli\u003eBacked by Haltech limited warranty\u003c\/li\u003e\n\u003cli\u003eFor competition and off-road use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eThe Details\u003c\/h4\u003e\n\u003cp\u003ePart number HT-186369. Built to match the exact connector layout and pinout it is designed for, so it drops into your system without surprises. Always confirm fitment and compatibility for your specific application before purchase.\u003c\/p\u003e\n\u003ch4\u003eFitment\u003c\/h4\u003e\n\u003cp\u003eSee the product title and Haltech documentation for exact application coverage. 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Built with OEM-quality connectors and correct gauge wiring throughout, it gives your build a clean, reliable foundation that matches the Haltech ECU pinout exactly.\u003c\/p\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eOEM-quality connectors and correct gauge wiring throughout\u003c\/li\u003e\n\u003cli\u003eFully terminated with every wire labeled and pre-configured in software\u003c\/li\u003e\n\u003cli\u003eBuilt for the Haltech Nexus platform\u003c\/li\u003e\n\u003cli\u003eBacked by Haltech limited warranty\u003c\/li\u003e\n\u003cli\u003eFor competition and off-road use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eThe Details\u003c\/h4\u003e\n\u003cp\u003ePart number HT-186400. Built to match the exact connector layout and pinout it is designed for, so it drops into your system without surprises. 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