MOOSE RACING Steel Rear Sprocket - 50 Tooth 1210-BET-50-STL Replacement Boot Calf Sliders Kit includes stainless steel return

Kit includes stainless steel return spring

New Diamond Shaped Can Design with tapered entrance (Carbon with Titanium end cap) designed to match the ZX10's body line

In cooperation with several Yamaha teams and riders Twin Air has developed a new Airbox Kit for the Yamaha YZ250F/450FKit creates more open space within the airbox to optimize the airflow into the engine

in large part because of its unique internal venturi design of the inner filter High-flow K&N® Air Filter element ensures the maximum air intake and protection Slim profile keeps the unit away from the rider’s leg Formed stainless steel mesh insert Optimize overall performance Made in the U

What if I already have a flashed ECU

MOOSE RACING Steel Rear Sprocket - 50 Tooth 1210-BET-50-STL Replacement Boot Calf Sliders Kit includes stainless steel returnManufactured from premium quality C45 high carbon steel CNC precision machined to assure tight tolerances Machined with lightening holes Attractive bright zinc plated finish