Specifically engineered using the latest materials and clutch technology. SSP's new friction discs have been dyno proven time and time again to be the best clutch on the market. Their new friction plate design requires a minimal break in period, thus minimizing down time. SSP has engineered these clutch discs for smooth, street like engagement. You will not have to sacrifice reliability for drive ability. 

Comes in three different versions:

SPEC-R: 900 ft/lb capability 

SPEC-S: 750 ft/lb capability

Finally, SPEC-X, the ultimate soltuion for holding 1000+ ft/lbs on stock tcu. Includes: SSP BMW Heavy Duty Spec-X Clutch (18 plate) SSP BMW Life Time Stainless Filter (35 micron) SSP BMW Heavy Duty Heat Treated Output Basket (1.3.5.7) SSP BMW Heavy Duty Heat Treated Output Basket (2.4.6) SSP Heavy Duty Oil Pump Bearing Kit SSP Heavy Duty Snap Ring