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 Transmission Adapters. We have Plug and Play options if you are doing a DCCD Controller install , we have Plug and Play options.

Click here for our Auto to Manual Conversion Overview

iWire has created three types of adapters for the most common transmission swaps. Need help determining which option you need? You can see which of the matching plugs below exists on your new transmission or Contact Us, and we'll help!

(Need one of these receptacles? Check out the links at the bottom of the page)

Turbo Transmission to DCCD Transmission Adapter

Subaru Transmission adapter for turbo 5 speed to 6 speed

This model is for Turbo transmission (single 4-pin plug, for example, WRX) to DCCD-equipped transmission with flying leads for DCCD wires.

You can use our plug-and-play adapter to get the neutral position and reverse lights working and get your DIY DCCD controller installed with our 3-wire jumper harness (Grey plug) for 12v power and the two DCCD signal wires.

Purchase Turbo to DCCD Transmission Adapter

NA Transmission to Turbo Transmission Adapter

This model is for a NA transmission (2 plugs with 2 pins each, for example, an RS) to a Turbo transmission (single 4-pin plug, for instance, WRX).

You can plug in our adapter to your matching bulkhead harness and the new Turbo transmission.

Purchase NA to Turbo Transmission Adapter

NA Transmission to DCCD Transmission Adapter

Subaru transmission adapter for non turbo transmission to dccd transmission

This model is for NA transmission (2 by 2 pin plugs, for example, RS) to DCCD-equipped transmission with flying leads for DCCD wires. The NA to DCCD Adapter works on 2015 and Up WRX Subaru with 6 Speed Transmission.

Just plug in our adapter to your matching bulkhead harness and the new DCCD transmission, then run the 3 wires from the Deutsch (Grey) connector to your DCCD controller for power and signal.

Purchase NA to DCCD Transmission Adapter