better valve performance and race-proven durability

Depending on the rim diameter the recommended backspacing is 150-160mm (7" ET45

Here is a VIDEO that explains the whole procedure in-depth

they are machined from aircraft grade aluminium

This kit requires sourcing and using the Corvette C4 inner tie rods (OE part number: 21011026)

Clutch Kit - Xtreme Performance Extra Heavy Duty Cushioned Ceramic Incl Flywheel KFD27501-1CXA JR29 better valve performance and race-provenXtreme Performance Extra Cushioned Ceramic kit 1CX Recommended for: Motorsport ApplicationsThese kits are available with cushioned 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 Increased Clamp load Increased over standard Cushioned Ceramic Friction Disc Heavy Duty Pressure Plate Kit contains