DIY: 335i Exhaust Sound Mod. Better, and even easier than golf tee mod.
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05-02-2012, 08:32 PM
Join Date: Aug 2010
did this and got a service engine soon light after about 500 miles with it unplugged.
Montego Blue E90 335i
7" VRSF IC | OFT Tune | DCI | RB PCV | Secondary CAT Delete & CYBA 3.75" Tips | M3 Front | CSL Trunk | 19" LC Dyna Wheels
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