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Old 08-10-2012, 11:05 AM
bluskye bluskye is offline
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Location: chicago
Join Date: Jul 2002
Posts: 895
Mein Auto: 2006 330i / 2007 X3
Any slots or holes in a rotor will increase noise under heavy braking even in commuting conditions.

Now whether or not there is benefit of holes/slots under commuting conditions is another discussion.

Last edited by bluskye; 08-10-2012 at 11:08 AM.
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