LeoVince Exhaust Header Kawasaki Ninja 400 / 500 / Z400 / Z500 Drawing on years of competition experience, LeoVince headers are crafted to focus on maximizing power and torque with precise dyno-development. Constructed from high-grade 304 stainless steel and featuring meticulously executed TIG welds, these headers are both lightweight and robust, promising an exquisite visual appeal that matches the enhanced performance they deliver. Features: Aisi 304 stainless steel construction TIG welded Eliminates catalytic converter Increased power and torque Reduced weight compared to stock Compatible both with stock exhaust and LeoVince slip-on Weight 3.97 lb (-1.92 lb vs the Oem)