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      06-24-2013, 02:30 PM   #7
shadow191
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Drives: '07 E92 335i / '07 Infiniti FX
Join Date: Dec 2012
Location: GA

Posts: 809
iTrader: (3)

Have you thought about using a resonated x-pipe? On my other car, I replaced the x-pipe and resonators in an Invidia exhaust. It reduced the drone quite a bit. It also helped with the rasp, but there wasn't that much to begin with on that car.
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