PCE billet aluminum bolt-together torque converter is the ultimate in performance and adjustability. With strength in mind, PCE designed a one-piece forged steel turbine hub to prevent ballooning. They also feature a 5 axis CNC machined rear cover. The 10" diameter construction reduces rotational weight reducing scavenging of horsepower. The best part of these torque converters is the adjustability they provide, self-service-able to easily change your stall speed right at home.