WSM Piston Kit - Yamaha 350 - +1 mm 50-540-07K C1 Chain Clean 100% Combed ring spun cotton

100% Combed ring spun cotton Front Angle logo graphic

Our exhausts are hand-made in the USA for direct fitment to the 2018 + Ninja EX400

Maintain peak horsepower with huge gains in the bottom end

Made with OEM-type connectors

WSM Piston Kit - Yamaha 350 - +1 mm 50-540-07K C1 Chain Clean 100% Combed ring spun cottonQuality and construction that meets or exceeds OEM Feature improved E clip design Contain piston, rings, pin and clips Additional rings available separately Order one per cylinder Skirts have a nonabrasive, expansion retarding MOS2 coating to reduce heat and friction for added power and longevity MOS2 coating actually draws heat through piston walls and out the bottom Specially hardened tops add strength to ring grooves