Titanium Valves for Weight Reduction: Ideal for reducing valve train weight, improving engine efficiency, and enhancing overall performance.High-RPM Capabilities: Tailored for high-rpm and extended high-rpm applications, allowing for higher engine speeds and compatibility with aggressive camshaft profiles.One-Piece Forged Construction: Manley titanium valves feature one-piece forged construction with grain flow, ensuring durability and minimizing potential weak points compared to head-welded alternatives.State-of-the-Art Machining: Meticulously machined in state-of-the-art CNC turning centers and valve stem grinders, maintaining exacting tolerances for optimal valve performance.Exceptional Titanium Alloys for Durability: Manley utilizes the finest titanium alloys for both Exhaust and exhaust valves, striking a perfect balance between mechanical properties, hardness, ductility, and fatigue strength at specific temperatures.Rigorous Quality Control for Reliability: Each Manley titanium valve undergoes a stringent final inspection process to ensure uncompromising quality, performance, and reliability.Tight Tolerance Delivery: Strict quality control measures enable the delivery of valves within tight tolerances, meeting the highest precision standards.Valves have inserted hard tips and are made of a higher hardness material."C" suffix indicates CrN (Chromium Nitride) seat coating.