Doing an aftermarket boost controller install like a Cobb or Grimmspeed and the harness doesn't reach? Then purchase the iWire Boost Controller Extension! Plug in the two connectors and get the added length you need to finish your install. Great for cars with rotated turbo setups. 


Extension harness is made to iWire Spec with high quality raychem and tefzel so it will withstand the harsh engine bay environment. Length is 18 inches long. 


Compatible Cars:

2002+ WRX

2004+ STi

2005+ Legacy GT

2005+ Outback XT

2004+ Forester XT


If you need a longer extension harness, please contact us.


Boost Controller Extension Harness