Elite 2000/2500 Nissan Skyline R32/33/R34 GT-R Plug'n'Play Adaptor Harness (HT-141357)

$495.00
Plug-In Fitment
Plug-In Fitment

No wiring needed

Component Only
Component Only

No ECU included

Elite 1000/1500 Plug'n'Play Adaptor Harness for Honda S2000 (HT-140843)

$495.00
Plug-In Fitment
Plug-In Fitment

No wiring needed

Component Only
Component Only

No ECU included

Elite 1000/1500 Honda OBD-I B-Series Plug 'n' Play Adaptor Harness (HT-140840)

$495.00
Plug-In Fitment
Plug-In Fitment

No wiring needed

Component Only
Component Only

No ECU included

Load video:

Get Your Tune Today!

Schedule Tuning

Elite 2500 & 2500 T Premium Universal Wire-in Harness (HT-141304)

$520.00
Universal Wire-In
Universal Wire-In

Full custom wiring

Component Only
Component Only

No ECU included

Premium Harness
Premium Harness

Longer, more outputs

Nexus Rebel LS EV6 Injector Sub-Harness (HT-186502)

$145.00
Component Only
Component Only

No ECU included

Nexus S3 Plug 'n' Play Adapter Harness Kit - Nissan 300ZX Z32 (HT-213319)

$2,800.00
ECU
ECU

Engine management

Nexus S2 Plug 'n' Play Adapter Harness Kit - Mazda RX7 FD S6 (HT-212307)

$2,365.00
ECU
ECU

Engine management

Nexus S3 ECU + Universal Wire-in Harness - 2.5m (8') (HT-213200)

$2,670.00
ECU
ECU

Engine management

Universal Wire-In
Universal Wire-In

Full custom wiring

Complete Kit
Complete Kit

ECU plus harness

Nexus S2 Plug 'n' Play Adapter Harness Kit - Honda S2000 (AP1 / AP2) (HT-212314)

$2,365.00
ECU
ECU

Engine management

Plug-In Fitment
Plug-In Fitment

No wiring needed

Complete Kit
Complete Kit

ECU plus harness

IO 12 Expander - 12 Channel with Flying Lead Harness Kit (CAN ID - Box A) (HT-059904)

$535.00
CAN Connected
CAN Connected

Single cable install

Harness
Harness

In the box

Save 10%

Haltech Nexus Rebel Plug 'n' Play Adapter Harness Kit - Chevrolet C6 Corvette (HT-650931)

Sale price$3,599.00Regular price $3,999.00
ECU
ECU

Engine management

Plug-In Fitment
Plug-In Fitment

No wiring needed

Complete Kit
Complete Kit

ECU plus harness

Elite 1500 + Mazda 13B S4/5 CAS with Flying Lead Ignition Terminated Harness Kit

$2,668.00
ECU
ECU

Engine management

Terminated Harness
Terminated Harness

Engine side ready

Complete Kit
Complete Kit

ECU plus harness

Elite 2500 + Subaru GDB WRX MY01-05 Plug 'n' Play Adaptor Harness Kit (HT-151325)

$2,490.00
ECU
ECU

Engine management

Plug-In Fitment
Plug-In Fitment

No wiring needed

Complete Kit
Complete Kit

ECU plus harness

Elite 1500 + Nissan Silvia S13 and 180SX (SR20DET) Plug 'n' Play Adaptor Harness Kit (HT-150951)

$2,120.00
ECU
ECU

Engine management

Plug-In Fitment
Plug-In Fitment

No wiring needed

Complete Kit
Complete Kit

ECU plus harness

Elite 1500 + Mitsubishi EVO 4-8 (5 Speed) Plug 'n' Play Adaptor Harness Kit (HT-150945)

$2,120.00
ECU
ECU

Engine management

Plug-In Fitment
Plug-In Fitment

No wiring needed

Complete Kit
Complete Kit

ECU plus harness

Elite 2500 + Premium Universal Wire-in Harness Kit (8') (HT-151304)

$2,450.00
ECU
ECU

Engine management

Universal Wire-In
Universal Wire-In

Full custom wiring

Complete Kit
Complete Kit

ECU plus harness

Premium Harness
Premium Harness

Longer, more outputs

Elite 2000/2500 Nissan R34 GT-T, Stagea WC34 Plug'n'Play Adaptor Harness (HT-141258)

$495.00
Plug-In Fitment
Plug-In Fitment

No wiring needed

Component Only
Component Only

No ECU included

Elite 2500 & 2500 T Basic Universal Wire-in Harness (HT-141302)

$365.00
Universal Wire-In
Universal Wire-In

Full custom wiring

Component Only
Component Only

No ECU included

Basic Harness
Basic Harness

Core outputs only

Elite 750 Premium Universal Wire-in Harness (HT-140604)

$399.00
Universal Wire-In
Universal Wire-In

Full custom wiring

Component Only
Component Only

No ECU included

Premium Harness
Premium Harness

Longer, more outputs

Haltech Nexus T1 ECU + Honda OBD1 Plug 'N' Play Adapter Harness Kit - 92-95 Civic, Integra, Prelude, 90-95 Accord (HT-650900)

$1,199.99
Plug-In Fitment
Plug-In Fitment

No wiring needed

Complete Kit
Complete Kit

ECU plus harness

Cable Throttle
Cable Throttle

Mechanical throttle

Nexus S2 Plug 'n' Play Adapter Harness Kit - Nissan Silvia S15 - S14 S2 Kouki (HT-212317)

$2,365.00
ECU
ECU

Engine management

Nexus S2 Plug 'n' Play Adapter Harness Kit - Mitsubishi EVO 4-8 & 2G (HT-212308)

$2,365.00
ECU
ECU

Engine management

Nexus S3 Plug 'n' Play Adapter Harness Kit - Honda EP3 (02-04) (HT-213302)

$2,800.00
ECU
ECU

Engine management

Plug-In Fitment
Plug-In Fitment

No wiring needed

Complete Kit
Complete Kit

ECU plus harness

Nexus Rebel LS MAP sensor adaptor harness (HT-186511)

$26.00
Sensor
Sensor

Engine sensor

Component Only
Component Only

No ECU included

Nexus S2 Plug 'n' Play Adapter Harness Kit - Honda OBD-I (92-95) (HT-212300)

$2,365.00
ECU
ECU

Engine management

Plug-In Fitment
Plug-In Fitment

No wiring needed

Complete Kit
Complete Kit

ECU plus harness

Haltech - Mazda Rx8 REW Swap Engine Harness (TBS-00185)

$1,650.00
Terminated Harness
Terminated Harness

Engine side ready

Component Only
Component Only

No ECU included

Haltech Elite 2000/2500 Terminated Harness for Nissan RB Twin Cam With CAS Harness and Series 2 (late) ignition type sub harness (HT-141231)

$1,020.00
Terminated Harness
Terminated Harness

Engine side ready

Component Only
Component Only

No ECU included

Elite 750 + Basic Universal Wire-in Harness Kit (HT-150602)

$1,514.00
ECU
ECU

Engine management

Universal Wire-In
Universal Wire-In

Full custom wiring

Complete Kit
Complete Kit

ECU plus harness

Basic Harness
Basic Harness

Core outputs only

Elite 2500 + Nissan Skyline R34 GT-T & Stagea WC34 Plug 'n' Play Adaptor Harness Kit (HT-151358)

$2,490.00
ECU
ECU

Engine management

Plug-In Fitment
Plug-In Fitment

No wiring needed

Complete Kit
Complete Kit

ECU plus harness

Elite 2500 + Nissan 300ZX Z32 Plug 'n' Play Adaptor Harness Kit (HT-151359)

$2,490.00
ECU
ECU

Engine management

Plug-In Fitment
Plug-In Fitment

No wiring needed

Complete Kit
Complete Kit

ECU plus harness

Elite 1500 + Mazda Miata (MX-5) NB Plug'n'Play Adaptor Harness Kit (HT-150921)

$2,120.00
ECU
ECU

Engine management

Plug-In Fitment
Plug-In Fitment

No wiring needed

Complete Kit
Complete Kit

ECU plus harness

Elite 2500 + Basic Universal Wire-in Harness Kit (HT-151302)

$2,360.00
ECU
ECU

Engine management

Universal Wire-In
Universal Wire-In

Full custom wiring

Complete Kit
Complete Kit

ECU plus harness

Basic Harness
Basic Harness

Core outputs only

Haltech Elite i6 R35 COP Ignition Harness (HT-130349)

$245.00
Component Only
Component Only

No ECU included

Elite 1000/1500 Honda Integra DC5 Plug 'n' Play Adaptor Harness (HT-140961)

$495.00
Plug-In Fitment
Plug-In Fitment

No wiring needed

Component Only
Component Only

No ECU included

Remote tuning, done live with Shawn

Book your session

Free consult

30 minutes to scope your build and setup.

First start

Live session to get the engine running safely.

Dial it in

1 or 3 hour tuning blocks on your schedule.

Every wiring harness we sell, from complete plug 'n' play kits to single sub-harnesses. Haltech plug 'n' play adaptor harness kits and Nexus VCU and ECU kits connect to factory wiring, Haltech and Boomslang harnesses cover Nexus and Elite installs, and Rywire builds engine harnesses for swaps.

You'll also find universal wire-in harnesses, terminated engine harnesses, ignition and injector sub-harnesses, wideband adaptor harnesses, PD16 flying lead harnesses and harness sleeving.

Use the vehicle filters to narrow it down, or see Haltech wiring harnesses and wiring services.