Thread: Mpg drop after muffler delete - 325i
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      02-21-2014, 04:27 PM   #3
e92_enthusiast_1
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Drives: '10 AW/CR e92 6mt 335i
Join Date: Mar 2012
Location: Chandler, AZ

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How long has it been? Did you have your DME adaptations reset and maybe an ECU reset? Might just need to relearn some of that stuff.

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Originally Posted by Markcaughey View Post
Anyone find an mpg drop after muffler delete ? Don't know if its just sociological or because I now have a heavier foot !
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