The PROX Steel Valve Kit boasts top-notch quality, crafted from nitrided steel and micro-hardened to minimize friction and wear. This innovative construction provides longer lifespan compared to original valves, making it the ideal replacement for short-lived titanium valves. The kit includes specially weight-optimized chromoly steel valve springs designed to withstand high RPMs. Installation is seamless and requires no modifications to original parts. Upgrade your Kawasaki or Suzuki engine with this durable and high-performance valve kit to ensure longevity and top-speed resistance.