Merge Services - 1999-2000 JDM/EDM V5/6

As of December 1st, we will only be taking on 25 more harness merges before we no longer offer this service. 

Thank you for your interest in our wiring services! Our custom harness merges combine the power and features of your new engine and ECU with the factory amenities of your chassis. We strive to make a high-quality and reliable harness so you can enjoy driving the car and not worry about electrical gremlins. 

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Please Read the Open Letter to Our Merge Customers

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Key Requirements for the Chassis

Chassis is one of the following
1993-2001 Impreza/OBS
1995-2004 Legacy
1995-2004 Outback
1998-2002 Forester

Chassis must be left-hand-drive
Dash is original to the chassis
The post-swap transmission needs to be a manual
We will do auto-to-manual conversions with the engine swap wiring

    Key requirements for the Engine

    Engine must be from an OBD2 model and NON-CANbus. They are the following

    2001-2006 JDM STi (using non immobilized ECU from 2001-2004)
    2001-2006 JDM WRX (using non immobilized ECU from 2001-2004)
    2002-2007 WRX
    2004-2007 STi
    2004-2008 Forester XT
    2004-2006 Baja XT


    Engine MUST be the same year or newer than the chassis
    Due to increased EPA enforcement, we no longer wire up an engine that is older than the chassis it is being installed in.

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    This is a CANbus-equipped chassis which makes swapping difficult.

    At this time, there are only two ways we would recommend moving forward. The first would be to take the entire harness from headlights to taillights of a similar year turbo version on your chassis (IE 08 WRX into 08 2.5i) and run a compatible engine for that platform. It would probably require a complete donor car to get all the parts you would need. The other would be to wire up a standalone ECU that can communicate with the CANbus system of the chassis and can run whichever engine you choose.

    We know this sounds crazy, given we are the “Subaru Swap Guys,” but with the complexities of the project, we would suggest at least considering purchasing the turbo car you are looking to build instead of swapping.

    Note: iWire is no longer wiring projects that utilize a standalone ECU.

    For more information on CANbus, please take a look here 

    We apologize for the inconvenience and thank you again for your interest in using iWire.

    This engine can work but requires modifications to run with a 2002-2005 WRX ECU and harness.

    The problem is that the ECU that came in the V5/6 WRX and STi models is non-OBD2, so it will not pass smog/emissions and makes tuning extremely difficult. We can no longer wire them up as a byproduct of the OBD2 issue.

    Not to worry, though, these engines can be modified so that a USDM 2002-2005 WRX ECU can run them. You can make it legal and open up a wide variety of tuners because the Cobb Accessport is now a tuning option. The conversion process is not too complicated, and you can find more information on what parts you need here.

    Please send us an email so we can discuss your options.

    This would not be a good option for your Drive by Wire Turbo application.

    There are more compatible engines that can be modified to be plug and play with your application. Please take a look at this post to find that engine.

    We apologize for the inconvenience and thank you again for your interest in using iWire.