Merge Services - 2004-2008 Forester XT

This Could be an Option For Your Project

As long as the basic setup matches your platform you could use the longblock and retain your original wiring with ECU. Please take a look at this post for more information on compatibility.

Thank you again for your interest in using iWire.

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 that 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.

Yes! This is a swap that we support.

There are some differences between 2002-2005 WRX and newer drive-by-wire platforms. Please take a look at the 16bit vs. 32bit blog post for more information.

We're here to help but have a few steps before you send us any harnesses to ensure everything goes smoothly.

WHAT IS OUR MERGE PROCESS

Merge Service Starts at $849.99
Turn Around Time – 4 to 6 weeks or 1 week rush fee available for $200

  1. Identify what your engine came out of exactly
    1. Take a look here if you need help figuring this out
  2. Fill out the spec sheet so we can get all the details of the swap so an iWire representative can get in touch with you
  3. Send a picture of the new engine from the crank pulley side, top down and one from driver’s side straight on.
  4. Pull the bulkhead harness from your car where the new engine is going into and send us a picture of the bulkhead harness
  5. Send a picture of the bulkhead and front harnesses along with ECU and fuel pump controller (if applicable) that goes with the new engine
  6. Pull the bulkhead harness from your car where the new engine is going into and send us a picture.

What do I need to send?

The most common question asked is, what do I need to send? Unlike other car makers, Subaru integrates the wiring for the engine and ECU with the rest of the harness for the body of the car. There is not a plug that separates the ECU to engine wiring from everything else.

Bulkhead harness from merged vehicle. The bulkhead harness is the part underneath the dash inside the cabin that runs along the firewall from door to door. It also includes the wiring that goes into the engine bay via the 2 grommets on the passenger’s side. The bulkhead harness will disconnect from the rear harness on the passenger’s side either at the front door (01 and older) or under the passenger’s side front seat (02+).

 

You must provide this harness. This harness comes out of the car you are swapping into.

 

You must provide this harness. This harness comes out of the car you are swapping into.

 

You must provide this harness. This harness comes out of the car you are swapping into.

 

You must provide this harness. This harness comes out of the car you are swapping into.

 

You must provide this harness. This harness comes out of the car you are swapping into.

 

You must provide this harness. This harness comes out of the car you are swapping into.

 

You must provide this harness. This harness comes out of the car you are swapping into.

 

You must provide this harness. This harness comes out of the car you are swapping into.

 

You must provide this harness. This harness comes out of the car you are swapping into.

 

You must provide this harness. This harness comes out of the car you are swapping into.

 

You must provide this harness. This harness comes out of the car you are swapping into.

 

You must provide this harness. This harness comes out of the car you are swapping into.

 

You must provide this harness. This harness comes out of the car you are swapping into.

 

You must provide this harness. This harness comes out of the car you are swapping into.


Front Harness The front harness is the section that goes throguh the driver's side fender, attached is the engine bay fuse box, and wraps around to the headlights and radiator fans.




Bulkhead harness in cabin and in the engine bay. (Harness from turbo car) The bulkhead harness is the part underneath the dash inside the cabin that runs along the firewall from door to door. It also includes the wiring that goes into the engine bay via the 2 grommets on the passenger’s side. The bulkhead harness will disconnect from the rear harness on the passenger’s side either at the front door (01 and older) or under the passenger’s side front seat (02+).

For JDM applications we no longer merge them with the RHD harness due to fitment and condition issues with them. Instead we offer our brand new 2.0 WRX/STi harness that is pre-wired for AVCS.


iWire's Brand New Merge Harness

 

We will need both the front harness and the bulkhead harness from the WRX along with the fuel pump controller.

Fuel pump controller

 

 

Turbo Bulkhead

Front Harness The front harness is the section that goes throguh the driver's side fender, attached is the engine bay fuse box, and wraps around to the headlights and radiator fans.

Turbo Font harness


Fuel pump controller This module is located in the trunk on the passenger side, behind the side wall carpet. This will not exist on non-turbo cars.
If you do not have this, iWire can supply this for $150.00.

Fuel pump controller


ECU Set Full ECU set with matching immobilizer box and key with ignition cylinder.
If you don't have this, iWire can supply this for an additional charge.

Immobilizer

 

We will need both the front harness and the bulkhead harness from the WRX along with the fuel pump controller.


Fuel pump controller This module is located in the trunk on the passenger side, behind the side wall carpet. This will not exist on non-turbo cars.

If you do not have this, iWire can supply this for $150.00.

Fuel pump controller

ECU Set Full ECU set with matching immobilizer box and key with ignition cylinder.

Note: 04 models are not immobilized

Immobilizer

 

Turbo Bulkhead

Front Harness The front harness is the section that goes through the driver's side fender, attached is the engine bay fuse box, and wraps around to the headlights and radiator fans.


Fuel pump controller This module is located in the trunk on the passenger side, behind the side wall carpet. This will not exist on non-turbo cars.
If you do not have this, iWire can supply this for $150.00.

Fuel pump controller


ECU Set Full ECU set with matching immobilizer box and key with ignition cylinder.
If you don't have this, iWire can supply this for an additional charge.

Note: 04 models are not immobilized

Immobilizer

Benefits of buying our Project 2.0L Harness

  • Don't have to pull the nightmare of the donor car
  • Gut the front end of the car
  • It's old and connectors are falling apart
  • Saves around $100 in shipping
  • Prewired for AVCS ($200 value)
  • If reselling the donor, will increase value to have harness still in.

Have us supply our brand new harness instead of using the old one and having to pay for shipping and worrying about something old and cracked.

Benefits of buying our Project 2.0L Harness

  • Don't have to pull the nightmare of the donor car
  • Gut the front end of the car
  • It's old and connectors are falling apart
  • Saves around $100 in shipping
  • Prewired for AVCS ($200 value)
  • If reselling the donor, will increase value to have harness still in.

STILL NOT SURE WHICH HARNESSES TO SEND? For more details with pictures click here

READY TO REMOVE YOUR HARNESS? Watch us remove the harness first!


For a full price quote for your project please fill out the iWire Merge Spec Sheet. An iWire Representative will reach out in 1-2 business days once the form is received to chat specifics about your project. Please have images ready of your ECU and engine.

Let's get started!

Click here to fill out the iWire Merge Inquiry Sheet.