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...

Warning - No aftermarket standalone ECU will pass an emissions test because they do not have OBD2 communications that would be required. 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...

If you are looking for information about the newer JDM Engines, 2001+ please check out this POST Long before the WRX was introduced to the United States for the 2002 model year, the Japanese were enjoying turbo boxer power in their Imprezas. These old Japanese Domestic Market (JDM) Subarus are...