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      06-24-2013, 03:27 PM   #9
triggz
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Drives: E92 335i
Join Date: Jun 2010
Location: Toronto

Posts: 1,225
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Rob I think because you have the resonators at the back is why you have the rasp.

My setup is identical to yours except I have my resonators in place of the secondary cats and I only get rasp at 6000rpm+
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