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Old 12-24-2015, 08:03 AM   #2
Mikamaro
MikeNoMaro
 
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Drives: A 2016 Challenger R/T M6 STP
Join Date: Sep 2009
Location: America
Posts: 2,375
The GMPP are Borla's Touring mufflers.
Go check on borla's website they have a video testing the 3 options they make, Touring, S-Type and Atak
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