2021-2026 BMW M3/M4 OEM Exhaust Valve Controller

Enhance the sound of your BMW M3 Competition G80 with our advanced Valve Controller. Designed in USA. This device allows you to take full control over your vehicle's exhaust sound.

Once installed, you can manually open and close the AFD exhaust flap on your BMW M3/M4 any time. The controller operates with a simple remote or can be integrated with your car's mirror buttons for seamless use.

Installation is straightforward and can be done by anyone with basic skills. The device plugs directly into the our exhaust module—simply remove OEM valve and replace with AFD valve module, connect it to the provided socket, then reconnect it to the exhaust flap socket.

Features

• Open Full and Close control
• Memory Function: With the remote, activate memory to retain your preferred setting (100% OPEN or STOCK) even after turning off the engine.
• Plug-in diagnostic-reader proof
• Leaves no trace when your car goes for maintenance
• No error messages or interference with the car's data bus

Fitment

• 2021-2026 BMW G80 M3
• 2021-2026 BMW G82 M4