Porsche Nickies Sleeves & Piston Set including Rings Pins & Clips 911 108 100 1 PCG 902 100 10 PCG 911 100 10 Ceramic coat of chrome including embroidered accents and Ceramic coat of chrome our fasteners will perform better than the traditional fastener Uses factory head gaskets and o rings and is designed as a direct replacement for the original Porsche parts our Porsche 911 996 997TT Turbo 100mm Nickies nickel silicon carbide plated aluminum sleeves and matching piston sets are an alternative to expensive Genuine Porsche factory replacement cylinder and piston kits and are suitable for both street and track use