- Easily switch between stealthy/quiet and sporty/loud in your F97/F98 X3M/X4M.
- Smartphone App available for both iOS and Android
- Full Control of your F97/F98 X3M/X4M's exhaust valve system
- 2019+ BMW X3M (F97)
- 2019+ BMW X4M (F98)
The optional Akrapovic Sound Kit enables owners of select Akrapovic car exhausts to control the sound of the system from the driver's seat of their F97/F98 X3M/X4M.