Originally Posted by Christian44
Thanks bud I was reading about some kind of couplings and some other things
Putting a USDM STi TMIC on a 02-05 WRX requires longer hoses to make the install easier. Since the STi is DBW the throttle body is different and the longer hoses let the STi TMIC fit better on the DBC WRX. I don't know if the same applies to the 06 and up WRX since it's a different motor.