This blog post is part 1 of a 2 part series about Subaru automatic transmissions. Below we will discuss the basic differences in Subaru automatic transmission setups. Cliff Notes: Automatic transmissions require a computer (TCU) to shift properly The TCU communicates with other parts of the car like the ECU...
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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...
Grounding Issues - iWire Grounding Kit
In this blog post we go over the basics of grounding and why it’s important in your Subaru. You can purchase the iWire Grounding Kit by clicking here. Here is our Owner Brian talking with Flatirons Podcast about the importance of grounding in your Subaru. The most important thing we...
Subaru DCCD Controller – How Do I Use the iDCCD Controller, and How Does it Work?
This blog post explains how a Subaru DCCD system works and how the iWire iDCCD Controller manages the center differential in a DCCD-equipped Subaru transmission. If you are new to DCCD, the simple version is this: DCCD stands for Driver Controlled Center Differential. It allows the center differential inside an...
Subaru Auto to Manual Transmission Conversion Basic Overview
This post is a general overview of converting your Subaru transmission from auto to manual. We wish we could offer a product to make this simple, but because of the many changes in Subaru wiring between car models and years, we can't make a product that works for everyone. This works for non-CANbus...
Subaru Transmission Swap Wiring - What Do I Need to Make My New Transmission Work?
When putting in a new transmission in their Subaru project, most people think of fitment and engine compatibility but rarely consider the wiring. Don't get stuck with butt connectors, soldering, or, worst of all, leaving them unplugged! To complete your transmission swap, use one of iWire's simple Plug and Play...
Rear Differential and Your Transmission Swap
This post talks about the rear differential (rear diff) temperature sensor. We explain what it does and how it can affect a transmission swap or aftermarket DCCD controller like iDCCD install, as well as differentiate between the two types for those who just need a replacement on an STi. Updating your...
OEM vs Aftermarket DCCD in your Subaru Swap
In this blog post we talk about the differences between OEM DCCD compared to aftermarket DCCD controllers when swapping a DCCD equipped transmission in a Subaru that didn't come with DCCD from the factory. Learn more about the DCCD basics here. When putting a 5 or 6 speed DCCD equipped transmission...