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      05-01-2012, 12:27 PM   #5
kitw
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Drives: 2013 E93 M3, Jerez Black
Join Date: Jun 2007
Location: Bay Area, CA

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Quote:
Originally Posted by kchu221 View Post
nice write up! have you ever tried the kreissieg valvetronic exhaust??
No, I haven't. Would love to... but it costs as much as a supercharger.