The PROX Steel Valve Kit is engineered with top-quality nitrided steel and micro-hardening to reduce friction and wear. This kit provides superior durability compared to original valves and is an excellent replacement for short-lived titanium valves. You can install it without modifications to the original parts, ensuring a seamless upgrade to your engine's performance and longevity. Ideal for those seeking reliability and enhanced durability in their motorcycle's engine components, this valve kit promises to deliver consistent and long-lasting results.