Quote:
Originally Posted by Tex_X7
There are exhaust valves which can be disconnected but I'm not sure it's necessary. There is an exhaust setting in iDrive which may keep them open. You can set the exhaust to "sport" (or something...I forget offhand) in all drive modes. I think this keeps it open like in sport mode. I may make a video on this to find out for sure.
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I was thinking the setting you are referencing was for the audio assisted sounds in the cabin called "Active Sound Design(ASD)", not the actual engine exhaust.