anyone really. i've always used clutch specialties. clutch masters is starting to advertise them as well.

but since its release as a new import design a couple years back and alot of racers using them, alot more companies are offering the full face iron.

i would of used it on my daily car but i dont know its wear propensity. if it wears like a copper clutch does, i'll keep it only for drag use. but i havent taken apart the race car since i put it together last year.