Control your air/fuel ratio from fuel injectors to improve horsepower, torque, and throttle response. Correct for maximum performance especially after modifications such as an aftermarket exhaust. The Bazzaz Z-Fi MX precisely controls fuel delivery to optimize engine performance. This plug and play unit comes with easy to use software and a USB interface, allowing for performance tuning that is switchable 'on the fly' with the optional Map Selection Switch. Use the Z-Fi MX with the Z-AFM to generate custom fuel maps on-demand and eliminate the need for expensive professional tuning or inferior shared maps that don't incorporate present riding conditions.