The Akrapovič Sound Kit (Valve Controller) lets owners of the BMW M2 (G87), M3 (G80/G81) and M4 (G82/G83) control the sound of their Akrapovič exhaust from inside the car, switching between a quiet mode and a sportier, more open sound.

Cockpit-Controlled Sound

A dedicated receiver drives the actuators that open and close the valves at the end of the exhaust system, controlled via the Akrapovič Sound Remote Controller or companion app. Installation is straightforward and plug-and-play, and it does not replace or modify the exhaust system itself.

Key Details

• Function: Manual/remote valve control (quiet & dynamic modes)
• Control: Wireless remote and smartphone app compatible
• Fitment: BMW M2 (G87), M3 (G80/G81), M4 (G82/G83) — also fits M3 and M4 LCI versions
• Manufacture: Designed and produced in Slovenia by Akrapovič
• Warranty: Covered by the official Akrapovič warranty

What's in the Box

• Sound Kit receiver
• Wireless remote control
• Fitting kit
• Installation instructions

Compatible Models

• BMW M2 (G87)
• BMW M3 (G80, G81, and LCI)
• BMW M4 (G82, G83, and LCI)

Note: fitting the optional Sound Kit means ECE type approval is no longer valid.