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      07-24-2008, 01:37 PM   #16
darkphantom
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Drives: E93 335i
Join Date: Aug 2007
Location: The place for Bimmers


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I'm not sure if this is related to you guys, but there was a SIB for the vibration in the cabin because of a certain frequency with the convertibles 55-65 MPH - it causes a resonating frequency that vibrates within the cabin and car ONLY from 55-65 mph. probably not a cause, but thought you might like to know.

Did you have any of this prior to having the exhausts installed?