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      12-23-2009, 10:43 AM   #159
Periokid
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Drives: 2015 F80 M3
Join Date: Apr 2009
Location: LI, NY

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Quote:
Originally Posted by Crydaddy View Post
What caused the backfire during initial testing?
Not really sure. The exhaust was almost like straight pipes at that point but the car was also a little cold. Maybe the mixture was a little rich at the time of the backfire.
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