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      04-24-2012, 02:25 PM   #334
mineo77
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Drives: 2010 135i,1989 PRO3,2001 530i
Join Date: Aug 2009
Location: Portland,OR

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2010 135i coupe  [7.56]
Quote:
Originally Posted by Everfly View Post
WHY NOT?
RE dyno their axle back and gain 9rwhp over stock. That's very impressive for just axle back.

exhaust isnt really a go-fast modification, it is to allow your go-fast mods to work more efficiently. straight up exhaust alone will just make you sound fast.
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