OEM brake disc can not be used

as well as the crisp sound of a piston-style BOV

Our dyno testing showed that the standard actuator experienced a dramatic 5PSI boost drop between 1700 and 2400 RPM

but then the factory designed kinematics won’t work as they are supposed to

Clutch Kit - Xtreme Performance Heavy Duty Sprung Ceramic Incl Flywheel 700Nm KSU24530-1B JR15 OEM brake disc can notXtreme Performance sprung ceramic kit 1B Recommended for: Motorsport ApplicationsThese kits are available with sprung ceramic friction discs and are designed for motorsport applications where higher heat and torque capacity is required. These can also be used in some road applications. Specifications: Torque capacity 700Nm Clamp load Increased over standard Sprung Ceramic Friction Disc Heavy Duty Pressure Plate Kit contains everything you need for a