The TTS MasterTune Single Bike Kit fuel management system is the way to go for riders who are looking for highly customizable fuel curve tuning. This kit is for HD motorcycles that utilize the diagnostic interface. It tunes your factory ECM with detailed data acquisition that aids in tuning diagnostics. You can save and restore your original factory settings while you adjust for different fuel injector flow rates, individually adjust front and rear cylinder volumetric efficiency and ignition timing, plus 22 other adjustable tables and parameters. You can also change factory RPM limit and speedometer calibration. Preset limits prevent adjusting values beyond reasonable settings. Helpful 2-D and 3-D graphing of tables to help visualize tuning maps.; NOTE:MasterTune-HD can be licensed for programming use on either single or dual vehicles and the interface will lock to the vehicle the first time it is used for programming. The Dual vehicle model allows for the use of one unit on two different bikes and locks to the VIN number in the ECU of both bikes.; ; Expert fuel curve tuning Save and restore factory settings 22 total adjustable tables and parameters Change factory RPM limit 2- and 3-D tables Single and dual kits available