iWire Subaru DCCD Transmission Adapter

Enjoy the Experience of Shifting Into 6^th Gear in No Time.

While bolting up your new STI transmission in your WRX chassis you notice the connectors don’t match the old harness. Have no fear, iWire is here! Our transmission adapter solves this problem by just plugging in a few connectors to get the transmission running and driving in your manual chassis. 

Fix Transmission Swap Related Issues

Illuminate the night behind you as you back up with working reverse lights and get rid of that pesky Neutral Position Switch Code (P0851). You’ll want to make sure you have the right Neutral Position Switch Type.

Jumpstart Your DCCD Install

To get the DCCD functionality working, check out our DCCD Controllers with wiring kits which include this adapter. This is a great feature that improves drivability of the car and performance of the transmission. If you already have a DCCD Controller simply run the Red wire (power) and White + Black wires (DCCD controls) provided in your kit to your controller. 

NOTE: OEM DCCD Controllers will not work outside of the STi they came from.

Compatible Cars:

DCCD Transmission

• STI
• DCCD Equipped JDM 5 Speeds

Turbo Chassis

• 2002-2014 WRX
• 2004-2008 Forester XT
• 2004-2006 Baja XT 
• 2005-2012 Legacy GT
• 2005-2009 Outback XT

Non Turbo Chassis

• 1992-2018 Legacy
• 1993-2022 Impreza
• 1998-2018 Forester
• 1995-2017 Outback
• 2003-2006 Baja
• 2013-2022 Crosstrek

2015+ WRX Chassis

• This version is only for 2015+ WRX Chassis

Some newer transmissions do not have the built-in vehicle speed sensor that the older chassis’ ECU and gauge cluster need to read speed. Check out our  VSSPro Plug and Play Wiring Kit to get the speedometer working.

Please note: this transmission adapter is for manual cars only. To learn more about auto to manual conversion click here.