{"product_id":"kit-in-valve-spring-kxf450-prox-28-sis4409-2-intake","title":"KIT IN VALVE+SPRING KXF450, PROX 28.SIS4409-2 INTAKE","description":"Prox Steel INTAKE Valve\/Spring Kit\u003cbr\u003e Prox is offering a wide range of titanium into steel conversion kits. The ProX titanium into steel extends 3 times the lifespan up the OEM titanium valves. The kits \u003cp\u003econtain a set of steel intake or exhaust valves plus a set of special designed stronger valve springs. due to the extra weight of the steel valve a heavier valve spring must be used! The ProX kit just replaces the OEM valves \u0026amp; valve springs and can be installed using the OEM retainers, bases and valve seats.\u003c\/p\u003e \u003cp\u003eKawasaki KXF450 (2009-2018),\u003c\/p\u003e \u003cp\u003ePROX  28.SIS4409-2\u003c\/p\u003e\u003cbr\u003e","brand":"Pro-X Racing","offers":[{"title":"Default Title","offer_id":50699084726538,"sku":"65-K171.PX","price":158.79,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0846\/0094\/6954\/files\/stock63617_1.jpg?v=1738395769","url":"https:\/\/store.phoenixmotos.com\/products\/kit-in-valve-spring-kxf450-prox-28-sis4409-2-intake","provider":"Phoenix Motos","version":"1.0","type":"link"}