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      01-18-2012, 06:02 PM   #2
hotrod2448
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Drives: E70 X5 SG, F10 535i
Join Date: Dec 2006
Location: Charlotte, NC

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2011 335d  [0.00]
Some sort of open element air filter system will make the turbo sound more prevalent but, likely won't do much for power or mileage.