The PROX Steel Valve Kit, manufactured by PROX, is made from high-quality nitrided steel that is micro-hardened to reduce friction and wear. This ensures longer durability compared to original valves, making it an ideal replacement for short-lived titanium valves. The kit can be installed without any modification to original parts, offering a seamless upgrade with extended lifespan and optimal performance. Designed specifically for Honda engines, the PROX Steel Valve Kit is perfect for enhancing your engine’s efficiency and reliability.