The Genuine VW / Audi Spark Plug Kit - 178590 is a comprehensive kit of products designed for servicing the spark plugs of a car. It includes various necessary components for maintaining the spark plugs, which are essential for the proper functioning of the vehicle's engine. The kit includes a set of spark plugs, which are responsible for igniting the fuel in the engine and providing the necessary power for the car to run. It also contains spark plug wires, which connect the spark plugs to the ignition system. Additionally, the kit includes a spark plug socket, which is used to remove and install the spark plugs during maintenance. This kit is specifically designed for use with VW and Audi vehicles, ensuring compatibility and optimal performance.