Any problems with 2.5" exhaust?? [Archive] - GrandAmGT.com Forum

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grandamracer84
07-02-2004, 04:51 PM
I'm getting a custom catback system done on my GA and both shops I went to said they wouldn't guarentee a 2.5" pipe working without rattles associated w/ suspension travel. Does anyone have a 2.5" system that is problem free?

Also, is a 2.5" system overkill on my 2.4? I'm planning on getting the GM s/c in the future, which is why I'm a fan of 2.5" over 2.25".

rizer
07-02-2004, 06:56 PM
Lots of people here use 2.5" piping. The kit alot of people here use is the SLP catback and that is 2.5. From all the searching ive done up until i got my exhaust, i dont recall any complaints about this.

Having 2.5 on your 4banger would not be the greatest move if you dont plan on doing any major engine mods(headers, etc) Since your planning a possible s/c, you might be fine

XtreemSix
07-03-2004, 01:05 AM
do the 2.5, just be sure and get your boost or it'll be a waste for ya....i haven't had any probs with my 2.5" exhaust