Thread: Akra Evo Drone?
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      10-28-2012, 02:49 PM   #20
sleepless
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Drives: 11 E90 M3
Join Date: Jan 2008
Location: Redmond, WA

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My guess is that the OP is sensitive to the frequency, like I am. For me, even the stock exhaust drones a bit at those RPMs. I can tolerate very few exhaust systems