Vito's Performance Super Stock 9440 Pistons Banshee simulates ported motor! 64.5

This is a set of genuine forged Vito's Performance SUPERSTOCK fits Yamaha Banshee pistons This piston set includes rings, circlips, and wrist pins Our line of Super Stock pistons for Banshees work to add power by simulating that the exhaust ports in your stock cylinder are timed differently which really means the same as hand ported with out the hassle. The Super Stock is notched on the dome next to the exhaust port to theoretically raise the port, which will raise the rpm range of the engine and develop more mid to top end power. Will add 8 horsepower to any unported Banshee! No special machining is required - drop in an go!Re-jetting is required since you will need more gas & fuel for all the Horsepower and Torque Sizes: 64.00mm Standard -PS 64.50mm or .020 over - P2 65.00mm or .040 over - P4 65.50mm or .060 over - P6 (please note, the photos may show a different size, but you will get the size you select from the title and item specifics)

• Cylinder Bore Diameter: 64.50mm, Material: Aluminum
• Brand: Vito's Performance, Type: Piston Set
• Piston Diameter: 64.50, Fits: Banshee
• Engine Type: 2-Stroke