For over 28 years, Clutch Masters has been manufacturing their line of clutches for street and race applications. During this time, they have witnessed the consequences of excessive pedal pressure on thrust bearings and clutch linkages. Clutch Masters was certain there must be a better way to achieve higher clamping loads without causing excessive pedal pressure and potential drivetrain and engine damage. Their solutions included re-engineering the lever point of the pressure plate and heat treatment of the pressure plate springs. On top of pressure plate research and development, Clutch Masters has also done extensive testing on clutch disc friction materials and combinations with the appropriate pressure plate.
- 2004-2008 Subaru STI