tilton is what i heard. also, ACT buys clutch disks from "kennedy engineered products" look for that on yahoo, and the disc itself is alot cheaper. and i heard from the exedy rep @ nopi that exedy actually sells the pressure plate to ACT. and that the ACT pressure plate is pressed rather then ductile (which he said ductile was better)
so i dunno if that helps, but i added to the convo. lol