Thread: Akra Evo Drone?
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      10-25-2012, 09:43 PM   #1
Second Lieutenant
Drives: 13'E92 M3
Join Date: Jan 2012
Location: Richmond Va

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Akra Evo Drone?

Installed the Akrapovic Evolution exhaust. I heard this system has little to no drone. Yet at 2k and at 3k RPMs I am getting seriously hardcore brain humming drone. any ideas?

The video doesn't really capture how much the drone dominates the cabin but you can kind of hear the difference.

you can even hear where the drone disappears once the revs drop below 2800ish

Last edited by dadealus; 10-25-2012 at 09:57 PM.
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