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      04-05-2012, 01:59 PM   #3
singularity
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Drives: M5 (F10)
Join Date: Dec 2011
Location: Slovakia

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Quote:
Originally Posted by sparkyg View Post
I am pretty sure that is the turbo and the bypass mechanism for the excess boost when you cut the throttle.
Thanks for the reply. I forgot to mention that the 'wind rattle' seems to be coming from under the car, around rear-under. When idling and flooring the pedal I don't hear that sound.
Appreciate 0