Stainless Exhaust Valve and Spring Kit - For Yamaha YZ450F WR450F YFZ450/R/X

For Yamaha YZ450F WR450F YFZ450/R/X

• Application: Exhaust
• Material: Stainless Steel
• Type: Exhaust Valve

• Stainless steel conversion kits include only what™s needed to convert your head to the long-life stainless steel Black Diamond intake valves
• Extends the life of the valve train and intake components by as much as 4x over the OEM titanium parts
• Includes forged one-piece stainless steel intake valves, wound chrome-silicon heat-treated wire valve springs, ultra-light titanium retainers and hardened steel bases
• Components are created using Finite Element Analysis (F.E.A.) software, as well as proprietary camshaft analysis and spring design software
• Specifically designed and engineered for each application