Bazzaz Z-Mapper software makes it easy to view and easily adjust fuel maps Load and save fuel maps that are downloaded, manually edited, created on a dyno, or made with the Z-AFM air / fuel self mapper Switch fuel maps on the fly with the handlebar-mounted Z-Fi Map Switch Bazzaz fuel controllers piggy back onto the Engine Control Unit (ECU), intercepting the signal sent to the fuel injectors and changing it The precise data for these changes is stored in the Z-Fi fuel controller in the form of a fuel map; The Z-Fi comes pre-programmed with an enhanced fuel map for power gains and improved throttle response 'Wakes up' performance Crisp and responsive throttle Smooths out throttle transitions HP and torque gains Easy installation Tested and proven Made in USA