Is there a way to change to loudness of the stock exhaust?

Www777 · 05-21-2021, 08:27 AM

Not sure if it’s louder in sport + vs sport vs comfort modes. How do you open the valves?

And I think I read there may be a button to adjust the interior volume. Is that purely just turning up the volume on the stereo or is the actual exhaust increased?

Thanks

martykray74 · 05-22-2021, 08:58 PM

Was wondering the same.. Switching M sound control on, does not raise the octive a ton

vetteflier · 05-31-2021, 04:49 PM

Check my post on fully opening exhaust valves.

05-21-2021, 08:27 AM	#1
Www777 New Member 13 Rep 18 Posts Drives: Owed 2 m3s, 2 m5s and now a m4 Join Date: May 2021 Location: NYC iTrader: (0)	Is there a way to change to loudness of the stock exhaust? Not sure if it’s louder in sport + vs sport vs comfort modes. How do you open the valves? And I think I read there may be a button to adjust the interior volume. Is that purely just turning up the volume on the stereo or is the actual exhaust increased? Thanks
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05-22-2021, 08:58 PM	#2
martykray74 Registered 1 Rep 2 Posts Drives: 2021 M3 Join Date: May 2021 Location: Scottsdale iTrader: (0)	exhaust Was wondering the same.. Switching M sound control on, does not raise the octive a ton
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05-31-2021, 04:49 PM	#3
vetteflier Captain 468 Rep 609 Posts Drives: 2021 BMW M4 Competition Join Date: Apr 2021 Location: Colorado iTrader: (0)	Check my post on fully opening exhaust valves.
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