The Genuine VW / Audi Ignition Tune-Up Kit - 178450 is a comprehensive set of products designed to service the ignition system of a car. It includes a variety of components that work together to improve the performance and efficiency of the ignition system. The kit contains spark plugs, ignition coils, ignition wires, and other necessary parts to ensure smooth and reliable ignition. These products are designed specifically for Volkswagen and Audi vehicles, but can also be used for other car models. With this kit, car owners can easily perform a tune-up on their ignition system, resulting in better fuel economy, smoother engine operation, and improved overall performance.