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      12-21-2017, 07:17 AM   #12
JNMiller
Enlisted Member
United_States
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Drives: 650i GC
Join Date: Feb 2015
Location: United States

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On mine, the exhaust flaps appear to remain closed on a cold startup. I have yet to hear the exhaust burbles at all, even in sport mode and in manual, and I am probably going to go ahead of and do the little unplug mod to see what it sounds like opened a bit.
Appreciate 0