12-15-2012, 07:23 PM
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Officially Welcomed to the 'Fest
Location: Michigan
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Join Date: Sep 2009
Posts: 757
Mein Auto: 2011 X3 35i
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Maybe the previous owner did the golf tee mod to their exhaust so it would be louder all the time. There are also other ways they could have done it. Check out this thread and then check out your vehicle. May be your answer
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