The Kompact EM series of Blow-Off valves are the first truly plug and play valves in the world. Simply disconnect and remove your OEM Blow-Off valve and install ours in its place. No adapters, hoses, or additional assembly required. Full operational control of the BOV valve is maintained according to factory specifications. Suitable for certain VW, Audi, Seat, and Skoda vehicles. For more details, please refer to the vehicle application list.