Quote:
Originally Posted by BlaqWhole
I did the MBRP Race system on mine
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There's your problem. MBRP drones in general..a buddy of mine had one on his 2010 5.7 Challenger R/T and it droned like crazy.
My work partner has a 2016 A6 GT with the Borla S type exhaust and it doesn't drone a single bit, in any RPM range.