{"product_id":"valve-exhaust-yzf400-426-98-02-kibblewhite-80-8057h","title":"VALVE EXHAUST YZF400 426 98-02, KIBBLEWHITE 80-8057H","description":"\u003cp\u003eThis White Diamond® Stainless Steel Exhaust Valve is designed for Yamaha® WR™ and YZ™ 400\/426 models from 1998 to 2002. CNC machined from a single forging of EV8 Stainless Steel, it offers excellent heat and corrosion resistance. The valve features a high-quality hard chrome finish applied via a 360-degree anode process to ensure consistent durability. Developed using Finite Element Analysis and tested for flow efficiency, this valve supports reliable exhaust performance under demanding conditions.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003e\n\t\u003cp\u003eCNC machined from a one-piece forging of EV8 Stainless Steel\u003c\/p\u003e\n\t\u003c\/li\u003e\n\t\u003cli\u003e\n\t\u003cp\u003eHigh resistance to heat and corrosion\u003c\/p\u003e\n\t\u003c\/li\u003e\n\t\u003cli\u003e\n\t\u003cp\u003eHard chrome finish applied with a 360-degree anode for uniform coating\u003c\/p\u003e\n\t\u003c\/li\u003e\n\t\u003cli\u003e\n\t\u003cp\u003eDesigned using Finite Element Analysis (FEA)\u003c\/p\u003e\n\t\u003c\/li\u003e\n\t\u003cli\u003e\n\t\u003cp\u003eFlow-optimised profiles tested on a computerised flow bench\u003c\/p\u003e\n\t\u003c\/li\u003e\n\t\u003cli\u003e\n\t\u003cp\u003eRecommended for use with Kibblewhite valve spring kits (Part No. 65-724)\u003c\/p\u003e\n\t\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003e\n\t\u003cp\u003eHead Diameter: 28.00mm \/ 1.102\"\u003c\/p\u003e\n\t\u003c\/li\u003e\n\t\u003cli\u003e\n\t\u003cp\u003eStem Diameter: 5.00mm \/ 0.1955\"\u003c\/p\u003e\n\t\u003c\/li\u003e\n\t\u003cli\u003e\n\t\u003cp\u003eTulip Angle: 25 degrees\u003c\/p\u003e\n\t\u003c\/li\u003e\n\t\u003cli\u003e\n\t\u003cp\u003eOverall Length (OL): 81.85mm \/ 3.220\"\u003c\/p\u003e\n\t\u003c\/li\u003e\n\t\u003cli\u003e\n\t\u003cp\u003eStandard size\u003c\/p\u003e\n\t\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eCross-Reference OEM Part Numbers\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003e\n\t\u003cp\u003eKibblewhite Part No. 80-8057H\u003c\/p\u003e\n\t\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eVehicle Fitments\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003e\n\t\u003cp\u003eYamaha WR 400 1998–2000\u003c\/p\u003e\n\t\u003c\/li\u003e\n\t\u003cli\u003e\n\t\u003cp\u003eYamaha WR 426 2001–2002\u003c\/p\u003e\n\t\u003c\/li\u003e\n\t\u003cli\u003e\n\t\u003cp\u003eYamaha YZ 400 1998–1999\u003c\/p\u003e\n\t\u003c\/li\u003e\n\t\u003cli\u003e\n\t\u003cp\u003eYamaha YZ 426 2000–2002\u003c\/p\u003e\n\t\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"margin-top:15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eFDY Performance – Engineered for riders who demand more.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAt FDY Performance, we deliver precision-engineered motorcycle parts trusted by riders across the UK and beyond. Every component is tested for reliability, durability, and peak performance so you can ride harder, longer, and with confidence.\u003c\/p\u003e\n\u003cp\u003eWe’re not just a brand — we’re a movement built by riders, for riders. Whether you’re chasing podiums, upgrading your build, or maintaining your machine, FDY Performance keeps you on the road and at the top of your game.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e📞 07765534854 | ✉️ fdy@fdyperformance.com | 🌐 www.fdyperformance.com\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size:13px; color:#555;\"\u003eFollow FDY Performance for new releases, expert tuning tips, and exclusive upgrades.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FDY Performance","offers":[{"title":"Default","offer_id":55987403161948,"sku":"65-496.KW.SS","price":52.79,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0866\/6982\/0252\/files\/stock63151_1.jpg?v=1763316142","url":"https:\/\/fdyperformance.com\/products\/valve-exhaust-yzf400-426-98-02-kibblewhite-80-8057h","provider":"FDY performance Ltd","version":"1.0","type":"link"}