PCV block off plate used for removing PCV system on GY6 engines. Most GY6 scooters have sub-par PCV systems often causing massive vacuum leaks that lead to poor performance. When installing this block off plate, it is highly recommended you purchase one of our case vent tubes. You will need to reroute your carburetor vacuum lines when removing PCV system. May not be legal in your state, please check local laws. Mounts with existing hardware. Off road use only.