The Beru Ignition Coil Kit - 135157 is a comprehensive set of products designed to improve the ignition system of a car. The kit includes multiple ignition coils, which are essential components responsible for creating the high voltage needed to ignite the fuel-air mixture in the engine. These coils are designed to be compatible with a wide range of car models, making it a versatile choice for car owners. The kit also includes spark plugs, which work together with the ignition coils to produce a spark that ignites the fuel. Additionally, the kit contains other necessary components such as wiring harnesses and connectors to ensure a complete and efficient installation. With this kit, car owners can expect improved engine performance, better fuel efficiency, and smoother starts.