Integrated Engineering EKagrip Cam Gear Friction DiskOriginally designed for about 100 horsepower, the factory cam gear to cam interface on the VW Audi engines struggle when subjected to serious power. Larger camshafts and stiffer valve springs will add more stress to this area. Even with an ARP cam gear bolt, this interface can become taxed and allow the cam gear to slip around under high torque, and come loose. This leads to wear between the surfaces, and shortly thereafter complete failure of the