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      07-24-2012, 04:51 PM   #21
kenneth
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Drives: 335i Sedan
Join Date: Mar 2007
Location: Montreal

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Quote:
Originally Posted by Autobahn335i View Post
It's not a vibration, but a kind of humming/light drone sound which is most perceptible around 2500-3500 rpm with a peak at 3k. It's especially noticable when I let off throttle in that range.
I get a whining sound too when going off throttle. M3 subframe with OEM diff bushing.
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SB, Terra, 6MT. Only a few mods here and there.....nothing extreme!
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