Run any Yamaha based Exhaust system on any Kawasaki based engine. Cut to fit on Power valve motors. Direct cooling paths for a straight shot to the motor! 61x Ports and Bolt holes (M8x1.25). Price $200 + Shipping. Freshly made out of 6061-T6 Aluminum and bead blasted. Includes stainless hardware. Order directly via the web site https://www.rutland-racing.com/