Our own personal selection of Xclutch clutches for the Subaru STI 2004-2021 / Legacy GT Spec B 2007-2009 with the 6MT subaru pull type transmission, with drivers in mind, all three options are sprung, which gives a bit of play on take off and better comfort.
 
XKSU24001-1T The 1T range of clutch kits offers organic friction material bonded directly to a steel backing disc, improving their overall burst strength in performance vehicles.XClutch performance upgrades have been engineered to provide the ultimate in clutch performance. Utilising the latest pressure plate design and friction material composition, XClutch upgrades offer the ideal balance between driveability and performance for different vehicle applications. The pivot point and diaphragm design are carefully analysed to ensure positive pedal feel and increased clamping force.
Recommended for Street Use
Torque Capacity (inc. Factor of Safety) 420 Foot Pounds

XKSU24001-1AX XClutch Stage 1X performance clutch kits have been designed for the next level of organic friction performance, providing increased clamping force for higher horsepower street applications.XClutch performance upgrades have been engineered to provide the ultimate in clutch performance. Utilizing the latest pressure plate design and friction material composition, XClutch upgrades offer the ideal balance between drivability and performance for different vehicle applications. The pivot point and diaphragm design are carefully analyzed to ensure positive pedal feel and increased clamping force.
Recommended for Street Use
Torque Capacity (inc. Factor of Safety) 510 Foot Pounds
 
XKSU24001-1C XClutch cushioned ceramic clutch kits feature a sprung hub that provides additional damping between the friction surfaces of the disc, enabling improved pedal modulation.
XClutch performance upgrades have been engineered to provide the ultimate in clutch performance. Utilising the latest pressure plate design and friction material composition, XClutch upgrades offer the ideal balance between driveability and performance for different vehicle applications. The pivot point and diaphragm design are carefully analysed to ensure positive pedal feel and increased clamping force.
Recommended for Performance Street Use requiring high heat capacity.
Torque Capacity (inc. Factor of Safety) 640 Foot Pounds
 
XKSU24001-1B XClutch sprung ceramic friction disc kit offers excellent heat capacity and strength, and is ideal for racing applications, whilst also including a sprung dampening hub to absorb peak shock loading.
XClutch performance upgrades have been engineered to provide the ultimate in clutch performance. Utilising the latest pressure plate design and friction material composition, XClutch upgrades offer the ideal balance between driveability and performance for different vehicle applications. The pivot point and diaphragm design are carefully analysed to ensure positive pedal feel and increased clamping force.
Recommended for Track Use
Torque Capacity (inc. Factor of Safety) 640 Foot Pounds