DIY: 335i Exhaust Sound Mod. Better, and even easier than golf tee mod.
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09-01-2008, 11:42 PM
Drives: E93 335i
Join Date: Aug 2007
Location: The place for Bimmers
^ you don't have to worry about anything by unhooking the actuator plug in the back, like mentioned above, it's a vacuum hose for the exhaust flap.
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