Probably a stupid question, but I want to make sure that it'll fit before I go out and buy an STi tmic. HELP PLEASE! If I buy an STi tmic for my '02 WRX, can I use my 2.0 tmic y-pipe on the STi tmic or are they different sizes? Trying to pick one up this week but I won't pull the trigger on the purchase is they're different sizes it won't fit. Thanks for your help...

 

Help bump...

 

PM'd And for those interested, yes it fits.

 

you will need to buy a longer coupler that goes from intake mani to TMIC the wrx one is too short

 

I used a STi tmic with a wrx y pipe coupled to a perrin wrx turbo to y pipe coupling on my old 06 wrx.

 

Yes, you need an extended coupler and the appropriate y-pipe or a modified one.