{"product_id":"speedwerx-stealth-cylinder-head","title":"Speedwerx Stealth Cylinder Head","description":"\u003cp\u003eThe Speedwerx Cast Head Kit is a performance cylinder head designed to increase compression while retaining the cooling advantages of the OEM head design. Manufactured from an unfinished OEM-style casting, the combustion chamber is machined specifically for improved throttle response, acceleration and power. Multiple compression ratios are available for different riding elevations.\u003c\/p\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003cul\u003e\n\u003cli\u003ePerformance cylinder head designed to increase compression and performance\u003c\/li\u003e\n\u003cli\u003eMachined combustion chamber\u003c\/li\u003e\n\u003cli\u003eRetains the OEM-style cooling design\u003c\/li\u003e\n\u003cli\u003eDesigned for use with 91+ octane non-oxygenated premium pump fuel at the recommended elevation\u003c\/li\u003e\n\u003cli\u003eNo ECU reflash required\u003c\/li\u003e\n\u003cli\u003eApproximately 0.4 lb lighter than the stock cylinder head\u003c\/li\u003e\n\u003cli\u003eUp to approximately 1.5 lb lighter than some aftermarket billet head designs\u003c\/li\u003e\n\u003cli\u003eReusable O-rings seal the head bolts without requiring silicone or sealant\u003c\/li\u003e\n\u003cli\u003eSpeedwerx reports approximately 3 HP peak gains with additional mid-range gains depending on configuration\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple compression ratios for different elevations\u003c\/li\u003e\n\u003cli\u003eNo core exchange required\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Speedwerx","offers":[{"title":"1045-7452 (MFG #: POL9RCHK-14.8)","offer_id":45937171497029,"sku":"1045-7452","price":0.0,"currency_code":"CAD","in_stock":false},{"title":"1045-7451 (MFG #: POL9RCHK-14.2)","offer_id":45937171529797,"sku":"1045-7451","price":0.0,"currency_code":"CAD","in_stock":false},{"title":"1045-7450 (MFG #: POL9RCHK-13.6)","offer_id":45937171562565,"sku":"1045-7450","price":0.0,"currency_code":"CAD","in_stock":false},{"title":"1045-7449 (MFG #: POL9RCHK-13)","offer_id":45937171595333,"sku":"1045-7449","price":0.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0569\/1955\/6165\/files\/pol9r-ch_2.jpg?v=1791255384","url":"https:\/\/royaldistributing.com\/fr\/products\/speedwerx-stealth-cylinder-head","provider":"Royal Distributing","version":"1.0","type":"link"}