The Beru Ignition Tune-Up Kit - 135172 is a comprehensive set of products designed to improve the performance of a car's ignition system. The kit includes three essential components: spark plugs, ignition wires, and a distributor cap. These parts work together to ensure that the engine receives the proper amount of electricity to start and run smoothly.

The spark plugs are responsible for creating the spark that ignites the fuel in the engine, while the ignition wires deliver the electricity from the distributor cap to the spark plugs. The distributor cap acts as a central hub, distributing the electricity from the ignition coil to each spark plug in the correct firing order.

By replacing these components with high-quality parts included in the Beru Ignition Tune-Up Kit, the car's engine will run more efficiently, resulting in better fuel economy and overall performance. This kit is suitable for a wide range of car models and ensures that all the necessary components are included for a complete tune-up.