Link lengths are different between nonM and M

25mm increase in scrub radius

Brown Red 11psi Middle Spring and Brown/Blue 10psi Outer Spring (installed)

Clamp load 1050kg 25% Increased over standard

OEM style separate springs can't be used any more

Clutch Kit - Xtreme Performance Heavy Duty Sprung Ceramic 370Nm 600kg (30% inc.) KMI22014-1B Turbosmart Link lengths are different betweenXtreme 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