The stage 1 clutch kit uses an upgraded pressure plate with extra increased clamping pressure

One of the problems encountered when tuning a diesel Patrol is the erratic boost curve afforded by the standard actuator fitted to the VNT-style turbo

causing significant boost leaks

Similar to your fuel pressure regulator

this is the solution for you

Clutch Kit - Xtreme Performance Heavy Duty Cushioned Ceramic 800Kg (35% inc.) 570Nm KNI24003-1C Touch Up Paint The stage 1 clutch kitXtreme Performance Cushioned Ceramic kit 1C 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 570Nm Clamp load 800Kg 35% Increased over standard Cushioned Ceramic Friction Disc Heavy Duty Pressure Plate Kit contains