Akrapovic Valve Actuator Kit For C5 Mercedes-AMG C63 Coupe

For vehicles with the base Mercedes-AMG exhaust system, which is then replaced by the Akrapovič Evolution Line system, the Valve Actuator Kit (P-HF985) is a mandatory upgrade. If the Evolution Line system replaces the Mercedes-AMG performance exhaust system, the Valve Actuator Kit (P-HF985) is not required.