Thread: Chinook?
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      03-26-2020, 01:49 PM   #9
jeffp1105
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Drives: 2020 Z4 M40i
Join Date: Feb 2014
Location: Colorado

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The chinook sound also exists on my F150. It's an aerodynamic issue and under a significant influence how high or low the windows are raised, using the factory wind defector or not. I've never heard this sound with windows all the way up or all the way down on my Z.
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2020 BMW Z4 M40i, Black/Cognac/799 Black Wheels
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