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      12-03-2012, 01:56 PM   #5
benzy89
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Drives: '08 E90 335i
Join Date: Jan 2012
Location: Northern NJ

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2008 BMW 335i  [3.75]
Quote:
Originally Posted by demontwinz View Post
an aftermarket exhaust is only for sound? It really doesn't add much HP. I believe 3-8 HP, depending on exhaust?
The OEM 335i catback exhaust is good until you get to 500 WHP