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

As of January 2025, we are no longer offering our harness merge services. Click here to learn more about this decision. We hope that the below information may be helpful for DIYers.

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.

    Please Click Here to Find Out How to Reserve Your Spot

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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.