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11-09-2008
hey everyone, doing some exhaust work.....removed cat and rez and installed flowmaster 40's, but the sound is very nasty (not good nasty) above 2000 rpm. everything is tight and there are no leaks....so what's up? thinking about either putting rez back on or putting cheap cat (magnaflow universal). read lots of info about other peoples tries at the sound...any more expert advice out there?
2000 gp gt
not sc
180 stat
11-09-2008
Found the problem. Flowmasters are about the worst muffler for this engine. If you want something, look into Magnaflow or something like Borla or Corsa.Originally Posted by mrbiggun1994
11-09-2008
No, I found the problem
You should stick with the stock exhaust, unfortunately I have yet to find an exhaust that sounds good on a 3800.
11-10-2008
Corsa^
11-10-2008
Try putting the resignitor back on. Should help a little
11-10-2008
You have a sound clip?Corsa^
11-10-2008
nah no sound clip...but i went by autozone and bought the universal fit cat from maremont and it sounds a lot better......can't believe flowmaster is the worst..thanks for the input
11-10-2008
i agree blown97.......your gp is very similar to mine...wierd
11-11-2008
i think i found it on youtube, it was a while back when i was looking for an exaust, i like the sound of my slp and no resonator.
11-11-2008
YouTube - Corsa catback
^really dosent sound half bad considering hes prolly catless and has the SLP headers
11-11-2008
I got Flowmaster 40's and I love them. I got a Custom 3" piping after the catless Pacesetter's with the stock Resonator.
YouTube - GTP Exhaust
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