The PROX Steel Valve Kit, manufactured by PROX, is a top-quality component made from nitrided steel and micro-hardened to reduce friction and wear. This ensures longer durability compared to original valves and makes it an optimal replacement for short-lived titanium valves. The kit can be installed without any modifications to the original parts, making it a convenient choice for enhancing motor performance. Ideal for Honda motorcycles, this steel valve kit guarantees enhanced engine reliability and longevity.