DIY: 335i Exhaust Sound Mod. Better, and even easier than golf tee mod.
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07-26-2013, 02:55 PM
Drives: Limited Ed Toyota Camry
Join Date: Oct 2010
Location: IL, AL, ATL, SC
Did it today.. No error codes.. Not a huge difference but notable difference in start up.. Not sure what the big fuss is all about.. Cool stuff and I don't see why this will hurt car's performance.
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