{"product_id":"kit-in-valve-spring-yzf450-prox-28-sis2424-2-intake","title":"KIT IN VALVE+SPRING YZF450, PROX 28.SIS2424-2 INTAKE","description":"\u003cp\u003eProx Steel INTAKE Valve\/Spring Kit\u003c\/p\u003e \u003cp\u003e\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 contain 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\u003e\u003cbr\u003eYamaha YFZ450 (2004-2009), Yamaha YZ450F (2003-2009), Yamaha WR450F  (2003-2015), Yamaha YFZ450R (2009-2015), Gas-Gas EC450F  (2013-2015),\u003c\/p\u003e \u003cp\u003ePROX 28.SIS2424-2\u003c\/p\u003e","brand":"ORO2U","offers":[{"title":"Default Title","offer_id":57206173663605,"sku":"65-K158.PX","price":219.9,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5011\/6136\/files\/stock63604_1.webp?v=1779150519","url":"https:\/\/www.smxoffroad.com\/es\/products\/kit-in-valve-spring-yzf450-prox-28-sis2424-2-intake","provider":"SMXOFFROAD Ltd","version":"1.0","type":"link"}