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11-21-2016, 08:10 PM
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#37
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New Member
Drives: 2012 Z-4 35i
Join Date: Jul 2015
Location: Meadows of Dan, VA
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Quote:
Originally Posted by ljkiter
I did lose the brrap sound when upshifting/downshifting. Can someone confirm what RPM the flaps open and close? Also when letting go of the gas while upshifting/downshifting, does it close/open the flap that causes the brrap sound?
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I believe it's 2500 rpm.
HP
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