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      05-01-2012, 07:18 PM   #16
yuwa
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Drives: 2011 E92 M3
Join Date: Aug 2011
Location: Pasadena CA

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my car was fine after akra and evolve tune installed for 600 miles, then got CEL pop up suddenly. the next day after i put on new summer tires, i got engine malfunction.

Quote:
Originally Posted by THE TECH View Post
Your statement is not based on any facts. Unless you messed up the o2 sensors when you put on the exhaust, there's no way for a different exhaust to cause your problems. Go to another dealer.