The Genuine VW / Audi Fuel Injector Kit - 178299 is a comprehensive set of products designed to service the fuel injectors in a car. It includes six individual components, each specifically chosen to effectively clean and maintain the fuel injectors in a VW or Audi vehicle. The contents of the kit are a fuel injector cleaner, a fuel injector seal, a fuel injector o-ring, a fuel injector retainer clip, a fuel injector spacer, and a fuel injector nozzle. These components work together to ensure that the fuel injectors are functioning properly and delivering the correct amount of fuel to the engine. This kit is a high-quality and reliable option for maintaining the fuel system in a VW or Audi car.