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      03-24-2013, 11:56 AM   #18

Drives: E92 M3
Join Date: Aug 2011
Location: USA

Posts: 568
iTrader: (-1)

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I cut out the stock resonators and added them to my Fabspeed X-pipe to make it quad resonated. The OEM mod was super raspy (a little louder and higher pitched than Kitw's vid) before and now I think the sound is perfect for me. No drone, a little louder than stock while cruising and a nice aggressive tone at WOT