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      09-22-2009, 11:30 AM   #6
persian54
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Drives: P-TurboS. E93M3/335i/Z435i/M5
Join Date: Jun 2009
Location: The Valley, SoCal

iTrader: (297)

it's called Speed Volume

If you're going 65 and floor it and hit 80-90 it'll get louder/speed up (however you want to describe it)