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      10-05-2012, 02:53 PM   #360
RupertPupkin
Lieutenant Colonel
United_States
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Drives: Freak Beast
Join Date: Aug 2011
Location: East


Posts: 1,534
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My 6MT 330i muffler delete droned horribly for the first maybe 100 miles at 2k then for some reason went away. even after ecu resets and now about 5k miles since it is perfect.


Quote:
Originally Posted by monkey_wrench View Post
I guess time will tell if it becomes less.