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Old 07-06-2008, 08:47 PM   #103
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Join Date: Dec 2003
Location: Wichita
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My Ride: 2011 E90 M3
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Originally Posted by bimmer07 View Post
did you install them yourself? its a silly thing but i never tightened my o2 sensors down all the way so they made a very annoying rattle around there ocassionally
Nope, I paid. The rattle seems like it is coming from the rear. I think it might be the flap which I already checked the vacuum line and oiled.

Might be time to change out the OEM exhaust.
2013 F30 328i - Melbourne Red
2011 E90 M3 - Monte Carlo Blue
2004 E46 M3 - Imola red
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