It has only cover function

for those who wish to avoid the cost of an aftermarket turbocharger

FPR6 Fuel Pressure Regulator Suit -6AN (Red) TS-0404-1024

FPR Kompact range for Bolt on & OE (EFI) Upgrade for 35psi to 80psi

Clutch Kit - Xtreme Performance Heavy Duty Sprung Ceramic 600kg (45% inc.) KMI22003-1B JR16 It has only cover functionXtreme 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 Nm Clamp load 600kg 45% Increased over standard Sprung Ceramic Friction Disc Heavy Duty Pressure Plate Kit contains everything you need