Thread: E92 M3 Race Build
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      01-14-2015, 05:01 PM   #114
steven_s
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Drives: M3
Join Date: Sep 2014
Location: Canada

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Just a question ; why 3in on the exhaust? From my understanding for our motor being all it is and keeping it NA 2.5 to 2.75 in is best suited.
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