oh some will say the 3.1 sounds good with some mufflers no need for a cat back really. but personally im not a big fan of exhaust on these cars except the gxp
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01-29-2013
oh some will say the 3.1 sounds good with some mufflers no need for a cat back really. but personally im not a big fan of exhaust on these cars except the gxp
01-29-2013
as of now i have a magnaflow high catalytic converter and a flowmaster 40 series muffler and dual tip exhaust to be honest it sounds really good check out my video: 2002 Pontiac Grand Prix Exhaust - YouTube
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