BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST - View Single Post - 335i Right Exhaust More Black and Dirty then left, Normal?

SamS · 12-07-2012, 03:05 PM

You already answered your own question. There is an exhaust valve that cuts off flow to the driver's side pipe, until the car is warmed up and/or there is appropriate throttle response.

12-07-2012, 03:05 PM	#2
SamS Banned 866 Rep 6,248 Posts Drives: Tesla M3 Perf + '18 X3 M40i Join Date: Jul 2010 Location: Dallas, TX iTrader: (0)	You already answered your own question. There is an exhaust valve that cuts off flow to the driver's side pipe, until the car is warmed up and/or there is appropriate throttle response.
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