If the car is equipped with performance exhaust with electric valve actuators than actuator set P-HF1006 is required and the Akrapovic sound kit P-HF1003 can not be used. The valves are opened or closed with the valve button inside the car.
If the car is not equipped with performance exhaust and you want to use the Akrapovic sound kit than Akrapovic sound kit P-HF1003 with Actuator set P-HF1006 has to be ordered.