BMW Performance Exhaust for - E90 325i?
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03-03-2011, 06:54 AM
BimmerPost Supporting Vendor
Drives: a black car
Join Date: Sep 2010
John yes deleting the centre resonator may induce drone but I'm thinking many people successfully use the PE with straight pipes and have no drone? I would think that the rear muffler would cancel out the drone.
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