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      02-27-2013, 08:03 PM   #35
Superfly_M3
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Drives: 2011 M3
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I have these as well, I don't think there are any performace benefits, but who can quantify this kind of testing ...

The weight of both OEM and Dinan are about the same. BTW I think OEM are aluminum not steel, they feel very light to be steel.