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      01-08-2013, 01:55 PM   #33
joe@ptech
NorCal BMW Specialists
United_States
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Drives: 17 M2|16 X5M|74 tii
Join Date: Oct 2010
Location: Bay Area, CA

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I have them installed on my 550i and don't experiece what you are describing. There is some very minor turbo noise at initial take off, but nothing like what you described.
Appreciate 0