Akrapovič P-HF1194 Sound Kit for BMW F82/F83 4 Series M4 OPF/GPF PFR5-4618 This smooth reduction in cross

This smooth reduction in cross sectional area invokes the Venturi effect where the airflow accelerates whilst maintaining laminar conditions

This allows the turbos to draw air with less resistance and therefore reduce the wastegate duty cycle resulting in higher overall performance

Features Front:

especially if the 4x front diff bushes are worn and softened

Reduction in tyre wear

Akrapovič P-HF1194 Sound Kit for BMW F82/F83 4 Series M4 OPF/GPF PFR5-4618 This smooth reduction in crossThe optional Akrapovi Sound Kit enables owners of selected Akrapovi car exhausts to control the sound of the system from the cockpit of their machine. Using Akrapovi technology, drivers can easily switch between the quiet mode and a sportier sound. With the use of a receiver to drive the actuators that open or close the valves at the end of the exhaust system, drivers can use the Sound Remote Controller or the new smartphone app (for iOS and Android)