This insulation kit is the perfect solution for keeping your VW's engine running at its best. This kit is designed to fit snugly on the intake manifold heat riser, preventing heat from escaping and warming up the air that is drawn into your engine. This can result in improved engine performance and fuel efficiency. Additionally, this insulation kit is made from high-quality materials that are built to last, ensuring that your air-cooled engine stays protected for years to come.