F97 X3M Active Autowerke Equal Length Midpipe start-up and interior sounds 

my 2020 F97 X3M Comp withe the Active Autowerke Equal Length Midpipe installed. Stock everything else. Start-up and interior sounds. The first clip is a relatively cold start in efficient mode with the valves open. Closing the valves in efficient mode doesnt change much during cold starts. I then switch it to sport + mode and the tone noticably changes. Once the cold start idle drops closing the valves makes the idle quite quiet, even in sport +. All driving was done in sport + with the valves open.
I'm y0jjimb0 on the X3M bimmerpost forum and @y0jjimb0 on instagram. I'll have more modifications for this build coming in the future.