Are the Flowmaster 40 series 2 chamber mufflers too much for the Pontiac Grand Prix GTP? The car (2002) has several mods TIA
Flowmaster exhaust help
Jan 05, 2005
2 Replies
Get the Borla Cat back system, better flow.
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They are on sale for like $750 right now, and no I dont work for PFYC, I have a monte carlo.
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