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      01-16-2020, 01:36 PM   #32
Zero71
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Drives: X3MC
Join Date: Mar 2013
Location: Glasgow

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Quote:
Originally Posted by ghstm2 View Post
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?
Turning that button off will.ask the car to close the exhaust valves whenever it can. It also adjusts ASD if you haven't already disabled that.
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