Pro-X 28.SIS4341-2 Steel Intake Valve and Spring Kit engine-gaskets-seals-complete-gasket-kits Eye-catching number plate graphics with

Eye-catching number plate graphics with space for personalized race numbers

1990-1998 Suzuki RMX250

1988-2006 Yamaha VMX1200 V-Max

Only US manufacturer to offer dedicated quiet exhaust systems

air intakes

Pro-X 28.SIS4341-2 Steel Intake Valve and Spring Kit engine-gaskets-seals-complete-gasket-kits Eye-catching number plate graphics withMaterial: 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