PTG Motorsport M177/178 Race ValveAs an integral part of producing high horsepower in your M177 178 AMG, our Motorsport Race Valve provides exceptional sealing against high boost while releasing pressure off throttle. This allows for much better transient throttle response as well as safety to your turbocharger. Complete with all hoses and fittings, this is a bolt on solution Complimenting our PTG 1000 and PTG X systems, this product removes the factory electronic valves which have