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      09-06-2011, 09:14 PM   #18
MilehighM3
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Drives: E90 M3
Join Date: May 2011
Location: Colorado Springs

Posts: 2,045
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I have the cp-e dp back with resonators and no stealth pipe. Drone around 2k is almost unbearable. Been thinking of sourcing a chamber like the active or the "stealth pipe" and adding it in myself. Personally I think cp-e should do a recall on them, its bad. At wot is sounds great, but not in the lower range...fitment of the axle back is good, resonated mid pipes not so much. Had to really customize the spacing on the support under the car, and it still rattles against it one in a while....
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