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ghstm2 · 01-16-2020, 11:36 AM

I'm confused. What does the exhaust button near the shift lever do? Doesn't it open the valves as well? Is there a difference in sound with that selected vs unplugging the connector?

01-16-2020, 11:36 AM	#30
ghstm2 Private First Class 75 Rep 143 Posts Drives: F87 M2/F97 X3M COMP Join Date: Feb 2018 Location: Bay Area iTrader: (0)	I'm confused. What does the exhaust button near the shift lever do? Doesn't it open the valves as well? Is there a difference in sound with that selected vs unplugging the connector?
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