DizzyWRX

iTrader: (9)

I was just wondering if the turbobacks are compatable between the wrx and sti. I only ask because i'm thinkin about trading in my wrx for an sti, and want to keep my turboxs turboback.

SlickmisterN

I thought the STi had bigger piping and a freeer flowing muffler? Am I wrong?

DizzyWRX

iTrader: (9)

I think it is, but as far as compatability goes, they're the same. Thanks joel.

Egan

iTrader: (14)

While many WRX TBE's will fit, the thing you have to be concerned about is the downpipe-tranny clearance. The 6MT is wider than the 5MT and downpipes that have a cat directly after the turbo won't fit. For instance, the Vishnu SIgnature Series 3" TBE will not fit because of the hiflow DP cat (I know, I had to sell mine). However, their non-signature model will fit because the cat is in the horizontal section of the downpipe.

Egan

iTrader: (14)

Also, be sure and do some research. Many folks are reporting boost spike/creep issues with TBE's on the STi. Do a search here or on imprezawrxsti.com regarding the boost creep.

DLUX WRX

iTrader: (1)

You have to get the waste gate ported on the VF-39 to get rid of the boost creep if you want to run a turbo back. There is a sticky at the top of this forum that explains it all.