ACT

ACT (Advanced Clutch Technology) is an American manufacturer of high-performance clutch kits and flywheels, founded in 2000 in Lancaster, Pennsylvania. Their range spans from streetable organic disc kits to full-race sintered iron and cerametallic puck clutches, plus lightweight chromoly and Prolite flywheels. ACT clutches are application-specific and manufactured in-house in the USA, widely used in drag racing, drifting, time attack, and grassroots motorsport.