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      10-02-2011, 10:36 AM   #49
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Drives: '13 M6 vert Black Saphire
Join Date: May 2011
Location: Anthem, AZ

Posts: 7
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Mine does the same thing in the 4000 rpm range when the exhaust is hot.I think it is a normal thing as the exhaust note outside the car also changes so it is not an issue with mounting or loose parts in the exhaust itself...

Hmm...Ok, thanks, that's helpful!
nkgmd is offline   United_States
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