Bonneville gxp exhaust/mufflers - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 01-25-2015, 10:37 PM   #1
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Default Bonneville gxp exhaust/mufflers

Does anyone recommend an exhaust setup for a 2004 bonneville gxp? I've heard people switching to 3 in piping but that'* about it. Maybe dual is possible? Also mufflers maybe some borla xr1 or magnaflow hi-flo performance round? Any recommendations? Please and thank you
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Old 01-26-2015, 08:59 AM   #2
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unless you are going to get it tuned, not very easy on a northstar, there are very few places doing it. i would not change it, it will be lean with no way to fix it. you could probably put a aftermarket oem size and style muffler if you want it louder.
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