then spacers need to be used

for example 4x100 to 4x98

They use a ceramic “paddle” friction disc which can result in more noise and harsher engagement and is mainly suited to high speed 4x4 trial or desert race

StraightGate Inlet and Outlet Weld Flanges

Compressor Inducer: 71mm

Clutch Kit - Xtreme Performance Heavy Duty Sprung Ceramic 370Nm 600kg (30% inc.) KMI22002-1B JR31 then spacers need to beXtreme 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 370Nm Clamp load 600kg 30% Increased over standard Sprung Ceramic Friction Disc Heavy Duty Pressure Plate Kit contains everything you