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      12-11-2009, 01:54 PM   #5
artifice
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Drives: 2008 E92 M3
Join Date: Jul 2009
Location: The Colony, TX

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Could be the diff... dealership will put an additive in your diff to make it less noisy but in actuality it is normal, part of having an lsd. Does your car buck a little? also give a search a try... there a couple of threads on it.