2.0 WRX and 2.0 STi Bulkhead Project Harness


SKU: PR-BTHR001 iWire Services

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Please note: this is not a PnP solution or replacement harness. This harness is for DIY projects and will need ends and wiring connected by the consumer to make the car run properly. 

Full harness walk through video can be found here - https://youtu.be/x0EMmCLQToI

Planning on a USDM 2.0 WRX or 2.0 JDM AVCS Equipped WRX or STi engine swap? Then you'll want to start with this ECU to engine harness.

How about a DIY 2.0 WRX or 2.0 JDM STi powered Sandrail, Bug, Vanagon, or Porsche? Don't bother with stripping down an old harness, let us a give you a jump start with something brand new! 

Is the WRX harness you picked up for the merge falling apart with broken connectors? Did your harness come from a damaged car and can’t be trusted? Are you missing this harness completely after importing your engine? Well iWire has you covered.

With all new materials, high quality sleeving, and designed with top notch fit and finish in mind, our 2.0 WRX and STi ECU to Engine Wiring Harness is more than just a stock replacement.

Includes wiring schematic for the harness and matches the basic layout in a Subaru chassis with the ECU in the passenger's side footweel. This product is designed for professionals with wiring experience. This harness does not include a step by step install guide like our other products. ECU is not included with the harness. 

For those using iWire to wire up their project, the price for this harness is $499.99. Do not purchase this item as it will be added directly to the invoice once the proper steps have been followed - https://www.iwireservices.com/our-services

Compatible Engines:
2002-2005 USDM WRX (EJ205 without AVCS)
2001-2006 JDM WRX (EJ205 with AVCS)
2001-2006 JDM STi (EJ207 with AVCS)

More info on these EJ205/7 models - https://www.iwireservices.com/post/subaru-ej205-breakdown

Suggested Uses:
Subaru into Vanagon
Subaru into Bug
Subaru into Porsche
Subaru into Kit Car
Subaru into Dune Buggy


This kit is designed to modify the electrical systems in your vehicle. Working around electricity can be dangerous and even deadly if proper care is not taken. While iWire takes pride in making our products as simple as possible to use, we still recommend that a professional, qualified technician perform the installation. Any modification to a vehicle that exceeds the original manufacturer specifications carries an inherent risk of mechanical failure that could result in damage to life or property. iWire is not responsible or liable for any damages that may occur. THIS PRODUCT IS NON RETURNABLE. By purchasing this product, you agree to these terms of sale.