The Genuine VW / Audi Ignition Tune-Up Kit - 178452 is a comprehensive set of products designed to improve the performance and efficiency of a car's ignition system. The kit includes various components that work together to ensure proper functioning of the ignition system, resulting in smoother starts, improved fuel efficiency, and overall better engine performance. These components may include spark plugs, spark plug wires, ignition coils, and other necessary parts. By regularly using this kit, car owners can ensure that their vehicle's ignition system is properly maintained and functioning at its best.