Exhaust upgrade - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

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Old 02-24-2010, 11:12 AM   #11
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Your stock exhaust is fine. What you can change is the muffler for better sound, no performance upgrade there. A free flowing cat will help, 3" downpipe, and headers. But you have a stainless 2.5" exhaust, no need to change it. I'm still on stock from the res back.
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Old 02-24-2010, 11:20 AM   #12
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i thought you put an 80 series on for a muffler?!
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Old 02-24-2010, 11:32 AM   #13
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Yes I did. I was referring to the pipes.
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Old 02-24-2010, 11:48 AM   #14
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i was told on the 2000+ the exhaust was 2.5 from front of cat to front of resinator, the 2.25 from the back of the resinator to the tips. the GXP was 2.5 all the way back from down pipe, is this correct? I have both exhausts here and am putting the GXP one on today so i will check it out for sure
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Old 02-24-2010, 12:21 PM   #15
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That sounds right, does anyone know what the size of the pipes are after the Y split for each muffler? I've been thinking about putting my resonator back in and throwing some Magnoflow mufflers on when I put a new downpipe and cat in
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Old 02-24-2010, 12:35 PM   #16
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you have the SSEi exhaust correct?
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Old 02-24-2010, 12:40 PM   #17
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Correct
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Old 02-24-2010, 12:41 PM   #18
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Quote:
Originally Posted by sawgunner View Post
propane kit out the tips!!!
And here'* some nice exhaust tips to go with a propane flame Mod.

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Old 02-24-2010, 12:42 PM   #19
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Hahahahha wow I'm about to bust out laughing in study hall
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Old 02-24-2010, 12:47 PM   #20
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I'm not sure which is worse, that someone made that, or that someone actually put it on their car.
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