Thread: DIY: 335i Exhaust Sound Mod. Better, and even easier than golf tee mod.
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      04-11-2008, 09:55 PM   #128
lkn
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Drives: 335i
Join Date: Oct 2007
Location: Orange County

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I would take precaution doing this mod as another member has had the dealer find out that there is a BB inside the valve..
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