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      05-09-2013, 01:52 PM   #3
MilehighM3
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Drives: Harrop E90 M3
Join Date: May 2011
Location: Colorado Springs

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Garage List
2009 E90 M3  [6.50]
See if there are any other cars on the lot that you can drive as a comparison with the shop foreman and/or service manager. Then use the difference in sound, if any, to justify the need for them to fix it.
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