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All posts Alternator/Battery AVCS CANbus Connectors DCCD DIY/Diagnostics ECU and Tuning Engine Guides Fuel System Interior/Chassis Throttle Body Transmission VSS Engine Swaps (Discontinued)

Subaru Engine Swaps and the California BAR/State Referee Process

In this post, we'll talk about the engine change guidelines for the state of California and the BAR engine change referee process. We'll include the critical information you'll need to know if you are looking into this process when swapping your Subaru. This is not a specific guide for any particular...

This Dictates That - iWire Rules Of Thumb

In this blog post we break down our key rules to make sure your project will be a "great success!" For the following, with very few exceptions, you must follow the rule and not mix and match or else you'll run into trouble. Heads dictate ECU Type When picking...

Impreza Gauge Cluster Comparison

In this blog post we go over the differences between Impreza clusters. This post only implies to Impreza chassis and not other Subaru chassis.

Guide to Converting a V5/6 EJ205 to Work with a USDM EJ205 Platform

December 2024 Update: iWire is no longer offering harness merge services so we can focus on other parts of the business, including iDCCD, plug-and-play harnesses, and replacement electrical components. As part of this change, our technical support, wiring guidance, and troubleshooting assistance for harness merge projects will be very limited...

Fuel Tanks and Your 93-01 Chassis Turbo Swap

This blog post is about which fuel system parts should be used for a turbo engine swap into a 93-01 chassis and why your fuel system choice matters.

"Easy" Subaru Swap Engine Choices

If you go with a 2.0 WRX or STi swap, here is an excellent guide for the entire process with help from our friend Bucky Lasek! First, there are no truly easy Subaru swaps; every swap has challenges. A lot of work goes into any swap. There are wiring changes, mount...