FMF Racing Hi-Flo Header - Stainless Steel , Color: Natural, Material: Stainless Steel 043197 Available in both single- and dual-port systems, giving excellent weight savings combined with performance habits that help make every 4-stroke excel Designed to enhance low to mid rpm power, which increases tractability Maximize exhaust and improve ergonomics for the performance-minded 4-stroke riders Tuned for bottom to mid performance Stainless steel for strength and light weight