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Why Are We Ending Our Harness Merge Services?

  Dear Valued iWire Engine Swap Customers, It's probably best to rip the band-aid quickly. I am writing to let you know that we will conclude our engine swap merge services in the Spring of 2025. This will give us the bandwidth to continue growing our new products, including iVSS...

Seat Swaps in your Subaru

In this blog, we discuss information about installing a new seat in your Subaru. This could include installing power or heated seats, race car seats, or the effects of switching your center console.  For all the cases below, there is one important thing to note: Many cars have airbags and...

Subaru Vehicle Speed Sensors (VSS) Part 3 - Extension Harness Differences for 3-Wire VSS Types

In this blog post we talk about the jumper harness on your Subaru transmission’s Vehicle Speed Sensor (VSS). This applies to 99-07 Subaru models with a 3-wire VSS.  Click here to learn more about VSS Sensor Types of all years   Types of VSS Connections All of the vehicle speed sensors...

What Is The Blue Tape For On My Subaru Wiring Harness?

In this post we talk about that weird blue tape found on Subaru wiring harnesses. This will be a rather short one, but it's a pretty helpful piece of knowledge. The blue tape is for the manufacturer to have components that are found in all harnesses, but are not used...

How to use a Multimeter - We Promise it's Easy!

In this blog post, we'll discuss some basic ways to utilize a multimeter to test a few common issues on your Subaru. We carry a very inexpensive but useful multimeter that you can purchase to help with your troubleshooting. We use this in all of our examples, so it would make it...

IAT and PCV Issues with a USDM 2.0 WRX with JDM V7/8/9 WRX and STi Engine Swap

In this post, we talk about what happens with the USDM PCV Diagnosis Connector and the JDM STi Manifold IAT sensor when swapping a 2001-2006 JDM WRX or STi in an 2004-2005 USDM WRX. If you need a replacement engine harness for any of these models, we carry it here....

Subaru Hub Swaps and the Effects on ABS and Wheel Speed

In this blog post, we'll talk about the two most common types of wheel speed sensors and how they affect your project, especially in relation to the ABS (anti-lock braking system). It's worth noting that there is a difference between wheel speed and vehicle speed. Check out the end of this...

2004-2008 Forester XT and 2004-2007 STi Comparisons for Swap

In this post, we discuss the similarities and differences between the 2004-2008 Forester XT and the 2004-2007 STi models since many Forester owners are looking to add STi features. Our general recommendation is to retain as many Forester parts as possible to eliminate the wiring changes that would otherwise be required. Wiring...