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Immobilizer Options in a Subaru Swap

In this blog post we go over the options for installing the immobilized ignition cylinder in a Subaru swap. The most important part is getting all of the necessary pieces from the same car. If all of the pieces are not from the same car, the immobilizer system will not...

FA20 Engine Swap

This blog post describes what we’ve learned so far (as of July 2020) about doing an FA20 swap into an older chassis like a GC or GD. While this swap is remarkable and unique, we do not currently recommend it. Keep reading to learn why. Our recommendation is based on the...

What to Know BEFORE Swapping a Subaru

      This is an iWire PSA - Don't let your swap dreams die! Too many times we have to be the bearer of bad news. This happens enough that our owner Brian has started calling himself the "Wet Blanket." Unfortunately we get a lot of customer calls from...

Subaru Wiring Harnesses Explained

This iWire blog post breaks down some basic harness terminology. We hope these diagrams will make it clear exactly which harness is which and the harnesses needed to complete your merge. Subarus are a bit different from most cars. With most manufacturers the ECU to engine wiring harness is all...

Subaru Project Do's and Don'ts

iWire has been a part of a few thousand Subaru project over the years. We thought it would be a good idea to give some general tips to people doing Subaru projects of their own. Below are some do's and don'ts that we recommend for almost every Subaru project whether...

Subaru Dash Swap Guide

 DISCLAIMER! WARNING! ALERT! For those who have a dash swap, we are not trying to pick on you. We understand there are many reasons why people would do it, but we have our reasons for why not to do it. iWire has wired GC swaps in every imaginable way and...

Subaru Crossmember Information

In this blog post we discuss the things to consider when swapping the crossmember (also called X-member) during your Subaru engine swap. Learn more about how to do this in our swap guide video on the Buck Yeah Channel The thing to note here is that the crossmember, steering rack,...

How to Wire Your Non Turbo Subaru for a Turbo Engine Swap

When installing a different engine type (e.g., NA to turbo) into a Subaru chassis, the Engine Control Unit (ECU) also needs to be swapped in to get the engine running correctly. ECUs, with almost no exception, are not interchangeable if the model and year of the car do not match, so...