What size exhaust?? [Archive] - Toyota MR2 Message Board

celica, size, changed, removed, inch, downpipe, quarter, rush, engine, 3sgte, exhaust, people, wondering, difference, performance, 3inch, moment

hello people, ive got a 2nd gen 3sgte engine in my 7th gen celica i was just wondering what size is best to run, a 3inch all the way through or 2.5? whats the difference in performance? At the moment it has 3 inch downpipe to where my cat use to be before it was removed and then goes into 2 and a quarter from what was originally on my celica. Should there be any rush to get it changed?