Pro-X 28.SIS1340-2 Steel Intake Valve and Spring Kit helmets-helmet-accessories-replacement-parts-accessories 2018-2019 Polaris ACE 900 XC

2018-2019 Polaris ACE 900 XC

2018 Suzuki RM-Z450

1984-1989 Honda CR125R

2016-2019 Husqvarna FE501

Pro-X 28.SIS1340-2 Steel Intake Valve and Spring Kit helmets-helmet-accessories-replacement-parts-accessories 2018-2019 Polaris ACE 900 XCMaterial: 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