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2014-2015 Yamaha WR250R
1999-2002 Suzuki LT-F300F KingQuad 4x4
2018-2019 Polaris ACE 900 XC
Single line kit
Pro-X 28.SIS1340-2 Steel Intake Valve and Spring Kit helmets-helmet-accessories-replacement-parts-accessories 2014-2015 Yamaha WR250RMaterial: 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
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