DIY: 335i Exhaust Sound Mod. Better, and even easier than golf tee mod.
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08-29-2007, 12:04 AM
Drives: 2013 X6
Join Date: Dec 2005
Originally Posted by
is there any bad side affects for this mod?
the 325 and 328 don't even have this valve.
it's nothing but sound dampening.
"Teach the ignorant. Ignore the stupid."
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