Thread: 650 M Sport owners...
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      10-20-2017, 04:10 PM   #3
SixPost
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Drives: 2015 650i Xdrive Alpine White
Join Date: Sep 2016
Location: Parts Unknown

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Bump...

Are your valves open on cold start??? If someone can shine a flashlight into the valved muffler outlet and check its status during cold start, it would help me a lot...

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