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brantley847 · 10-18-2008, 12:53 PM

has anyone had experience with the GMPP catback as far as performance and sound? I know it may not be as favorable as a flowmaster, but hey....is it really THAT bad?

10-18-2008, 12:53 PM	#3
brantley847 v It bites. Drives: 2011 IBM 2SS/RS Join Date: May 2008 Location: Orlando, FL Posts: 3,585	has anyone had experience with the GMPP catback as far as performance and sound? I know it may not be as favorable as a flowmaster, but hey....is it really THAT bad?