Pro-X 28.SIS2424-2 Steel Intake Valve and Spring Kit control-cruise-throttle-controls Mounting kit includes: (2x) screws

Mounting kit includes: (2x) screws M10x1

1974-1978 Harley Davidson FX Super Glide

WARN: RT40 / XT40

1987 Yamaha FZX700 Fazer

Pro-X 28.SIS2424-2 Steel Intake Valve and Spring Kit control-cruise-throttle-controls Mounting kit includes: (2x) screwsMaterial: Steel Replaces the OEM valves & valve springs. Steel, nitrided valves for increased durability and less wear under extreme conditions. Stronger valve springs deal with the extra weight of the steel valves. Springs are made from premium chrome vanadium steel for higher performance and durability at high rpm. Kit contains a set of steel intake or exhaust valves plus a set of specially designed valve springs; can be installed using the OEM