{"product_id":"prox-spring-intake-valve-kit-steel-kawa-28-sis4338-2","title":"PROX SPRING INTAKE VALVE KIT STEEL KAWA 28.SIS4338-2","description":"\u003cul\u003e\n\u003cli\u003eReplaces the OEM valves \u0026amp; valve springs and can be installed using the OEM retainers, bases and valve seats\u003c\/li\u003e \u003cli\u003eDue to the extra weight of the steel a heavier valve spring must be used! ProX has developed the Steel Intake and Exhaust Valve \u0026amp; Spring Kits, containing a set of steel intake or exhaust valves plus a set of specially designed stronger valve springs\u003c\/li\u003e \u003cli\u003eNitrided valves offer high microhardness while supersmooth surface finish reduces friction between stem and guide\u003c\/li\u003e \u003cli\u003eSpring are made from premium Chrome Vanadium Steel for higher performance and durability under high RPM\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PROX","offers":[{"title":"Default Title","offer_id":48613136531611,"sku":"PRO28.SIS4338-2","price":193.19,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0669\/9742\/0187\/files\/PhotoLogo_2c547dee-4761-4d66-8d53-41bf42c74c11.jpg?v=1784080741","url":"https:\/\/grmotorcycle.com\/products\/prox-spring-intake-valve-kit-steel-kawa-28-sis4338-2","provider":"GR Motorcycle","version":"1.0","type":"link"}