Hello together, we are today a ProCeed GT tested. What we didn’t like at all was the engine sound when the car is moving in normal mode. It then sounds very mofa-like. This rather surr noise is also present in sport mode, but is overcome by the Klappennauspuff. My question is how the two systems (sound generator and Klappennauspuff) work. Is in normal mode only the sound generator active and in sport mode both? I mean to have read that the Klappennauspuf f only opens at higher speeds. Can you disable the sound generator? Thanks for your info, Thilo