The Genuine VW / Audi Cylinder Head Bolt Set - 178150 is a kit of products designed specifically for use in a car's cylinder head. It includes a set of cylinder head bolts, which are essential for securing the cylinder head to the engine block. These bolts are made by a reputable brand and are compatible with both VW and Audi vehicles. The kit also includes other necessary components such as washers and gaskets to ensure a secure and proper fit. This kit is a reliable and high-quality option for those in need of replacement cylinder head bolts for their car.