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      07-15-2009, 10:41 PM   #2
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Drives: 335I
Join Date: Jan 2008
Location: Los Angeles

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2007 335i  [0.00]
I have a 07 335i I did not notice anything like you are talking about. It might be due to the valve. I have aftermarket exhaust with does not use the valve. I my exhaust flows the same on both sides. I would not be to worried about it.
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