Valvetronic Design Porsche Exhaust Valve Controller Q5 Additional systems are available with

Additional systems are available with different options for sound level

RSS+ include MONO-TUBE shock design for precise control and externally adjustable shock damping

One rear caps

Carbonado 2014-2020 BMW M3 F80 M4 F82 MP Style Rear Diffuser

If your car has this

Valvetronic Design Porsche Exhaust Valve Controller Q5 Additional systems are available withWelcome everyone to a revolution in the market. The Porsche OEM exhaust valve controller by Valvetronic Designs. This setup is a complete plug and play unit for most Porsches that give the driver full control over the exhaust valves. For cars like the 991. 1 Carrera S without sports exhaust, the factory exhaust has valves, but there is no button to open and close these valves. Our controller puts the power in your hands. These Controllers FIT ALL