{"product_id":"lexus-sc300-toyota-supra-2jz-ge-1992-1997-haltech-nexus-wiring-harness-bf29214","title":"Lexus SC300 | Toyota Supra 2JZ-GE 1992-1997 Haltech Nexus Wiring Harness (BF29214)","description":"\u003cp\u003e\u003cstrong\u003eThe 2JZ-GE SC300 in auto trim finally gets a standalone ECU path, and this harness is how you get there without cutting into your factory wiring.\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, 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 1992-1997 Lexus SC300 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\u003e1992-1997 Lexus SC300 \/ 1992-1997 Toyota Supra 2JZ-GE, Automatic Transmission.\u003c\/p\u003e","brand":"Boomslang","offers":[{"title":"R3","offer_id":43437442072643,"sku":"BF29214-R3","price":1200.0,"currency_code":"USD","in_stock":true},{"title":"R5","offer_id":43437442105411,"sku":"BF29214-R5","price":1405.0,"currency_code":"USD","in_stock":true},{"title":"S3","offer_id":43437442138179,"sku":"BF29214-S3","price":1200.0,"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","url":"https:\/\/www.tunedbyshawn.com\/products\/lexus-sc300-toyota-supra-2jz-ge-1992-1997-haltech-nexus-wiring-harness-bf29214","provider":"Tuned by Shawn","version":"1.0","type":"link"}