stimanhk

HI:Want to know,can a 2003 impreza wrx after market 3 inches bore, cat back bolt onto 2003 sti? Thanks

4ndy

iTrader: (7)

As far as I'm aware they 100% interchangable

galli RA

iv just got an 3" cat back after mkt system for my bug sti and it wont fit up to the 3" scoobyclinic down pipe it is to short or the 1 piece down pipe is not long enough the people i bought system said i might need a two piece cat

sivo

iTrader: (30)

hi, if you want 3" i would pretty much say you need to go full system ie turbo back milltek or something similar.

i had one of these systems http://www.scoobyparts.com/acatalog/..._NEW_AGE_.html
fitted to my sti ppp downpipe for a while before i went 3", sounded good looked great and got good money for it when i sold it on..... hth