►Power Valve Kits

ALL NEW DESIGN! We have upgraded our exhaust valve technology from a membrane bellow style actuator to a piston style actuator. A much simpler design that uses less components and eliminates bellow failure in big bore and turbocharged...

ALL NEW DESIGN! We have upgraded our exhaust valve technology from a membrane bellow style actuator to a piston style actuator.   A much simpler design that uses less components and eliminates bellow failure in big bore and turbocharged...

This is an upgrade to change your STM Bellow Style Valves to the new Piston Style they do not come with blades. Only works with STM valve blades!   ALL NEW DESIGN! We have upgraded our exhaust valve technology from a membrane bellow...