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I have 7-21.02 in my July build car that I took delivery of in Sept. The M sound control settings are on or off. *MY* understanding is off turns off the fake sound and closes the valves.
I coded it off with Bimmercode so I get rid off the fake sound (Active Sound Design) but the valves still open and give me more real exhaust sound.
As of about a week ago, if you have a car with 7-21 and you want to code out ASD you need a testflight version of Bimmercode available through Bimmercode support. You have to send a support email from the app.
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