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      04-15-2013, 10:36 AM   #4
coogs08
Second Lieutenant
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Drives: 2009 M3
Join Date: Aug 2011
Location: Pearland, TX

iTrader: (2)

I just put on test pipes the other day and kept my stock muffler. My only other mod is a k&n drop-in. I can barely notice a difference in sound from the exhaust until I give it some gas. The sound is wonderful, I wouldn't call it high-pitched or raspy, just sounds much 'fuller' if that makes sense. It was exactly what I was looking for.