The Genuine VW / Audi Fuel Injector Kit - 178245 is a comprehensive set of products designed for use in a car's fuel injection system. This kit includes four fuel injectors, which are responsible for delivering precise amounts of fuel to the engine. The kit also includes a fuel injector seal kit, which ensures a tight and secure fit for the injectors. Additionally, the kit contains a fuel injector clip, which helps to securely hold the injectors in place. Finally, the kit includes a fuel injector o-ring, which helps to prevent leaks and maintain proper fuel pressure. This kit is specifically designed for use in VW and Audi vehicles, and is a genuine product from the manufacturer.