OS Giken Mitsubishi CP9A Lancer Evo 4-9 STR Twin Plate clutch kit (STR2C) The clutch discs are 184mm

The clutch discs are 184mm in size and is good up to about 300lbs ft

These tools imitate the transmission input shaft to provide tight fitment to the pilot bushing/bearing to prevent sag often found installing multi-plate clutches

Nissan 240SX S13/14 - KA24DE

It is capable of handling up to 750lbs ft of torque and immense amounts of heat

The solid hub clutch discs are 215mm in size and are good up to about 700lbs ft of torque reliably

OS Giken Mitsubishi CP9A Lancer Evo 4-9 STR Twin Plate clutch kit (STR2C) The clutch discs are 184mmThe STR Clutch line up was designed to hold high capacity power while still retaining a relatively light clutch pedal. This technology was driven from our racer's demand for a lighter clutch during long endurance races in Japan. Heavy clutch pedals lead to driver fatigue during long endurance racing. The STR2C Twin plate feature solid hub clutch disks to provide efficient transfer of power while providing reliability and strength under heavy abuse.