AKRAPOVIC P-HF1638 Sound Kit for BMW M5 (G90 / G99)

The optional Sound Kit enables owners of select Akrapovič automotive exhaust systems to control the system's sound from within the cabin. Utilizing Akrapovič technology, the driver can easily switch between a quiet mode and a more sporty sound. Using a receiver (already included in the Evolution system kit) to control actuators that either open the valves or set them to an adjustable mode at the end of the exhaust system, drivers can use the Sound Remote Controller to adjust the valves.

When using the optional Akrapovič Sound Kit, the ECE type approval is no longer valid.