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      05-03-2012, 01:30 AM   #32
LAKEOM5
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Drives: 2013 M5 Black Sapphire
Join Date: Apr 2012
Location: Lake Oswego, Oregon

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Can someone explain what an aftermarket exhaust does for your car? I have never understood why spend 8k and only change the sound and maybe get 5hp

Someone enlighten me please! I'm confused, I own a 911 and buying an M5 but lost on exhaust. Thx!