Manley Titanium Performance Valves are lightweight and feature superior strength construction using with-grain one-piece forged and micro-polished premium titanium. The micro-polish process renders a jewel-like surface finish that eliminates potential stress risers and increases fatigue strength. Manley's strict quality control and rigorous final inspection ensures that these valves maintain the critical tolerances required to get you to the finish line every time! Sold 8/pkg Only.