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Old 03-29-2012, 07:02 PM
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Location: South Shore MA
 
Join Date: Mar 2008
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Mein Auto: Bad Luck 46
It might be cause every bmw ive been close to had the deep hum while idling but nothing out of the ordinary i just assumed it was the exhaust casue if you ever hear a bmw pull off they still sound nice even with the stock exhaust
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