{"product_id":"prox-exhaust-valve-conversion-set-for-yamaha-yz450f-wr450f","title":"Prox Exhaust Valve Conversion Set For Yamaha Yz450f \u0026 Wr450f","description":"\u003cp\u003eLatest addition to the ProX program is the Exhaust Valve \u0026amp; Spring Kits. ProX has now developed the Exhaust Valve \u0026amp; Spring Kits, containing a set of steel intake or exhaust valves plus a set of specially designed stronger valve springs.\u003c\/p\u003e","brand":"Hook \u0026 Hull CO","offers":[{"title":"Default Title","offer_id":45489700896838,"sku":"257428335821","price":599.95,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0726\/0310\/7398\/files\/s-l1600_d67ad5c3-4918-442e-954b-dfd618c2145c.webp?v=1784104068","url":"https:\/\/www.hookhullco.nz\/products\/prox-exhaust-valve-conversion-set-for-yamaha-yz450f-wr450f","provider":"Hook \u0026 Hull CO","version":"1.0","type":"link"}