First, the changes: Kawasaki started off by seeking to gain more top-end performance through changes to the existing Digital Fuel Injection (DFI) that include a second fuel injector-something never before seen on a production MX bike. This new component can be seen up by the airbox intake. Additionally, the Keihin throttle body gets a new seal, and the crankshaft has redistributed inertial balance for, as Kawi puts it, "higher performance". Some modified shift components and blue bling oil filler plugs round out the motor mods. Suspension-wise, the spring rate on Kawasaki's unique Separate Function Fork has been boosted to a stiffer setting. The left fork takes care of damping, and the valve stack has been reworked to accommodate the heavier fork spring. To keep the overall ride balanced, the rear shock also saw similar changes as the forks and was given a stiffer spring rate along with a more aggressive valve setting.