Active Autowerke | N52 Signature Exhaust
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10-05-2012, 02:01 PM
Caught the Bimmer-Bug
Drives: '06 330i
Join Date: Aug 2011
Originally Posted by
Could the drone be due to back pressure building at low RPMs? The drone becomes a bit less the more you drive it.
I guess time will tell if it becomes less.
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