TTS MasterTune BT Software

MasterTune BT software is a Windows-based ECM calibration development tool developed and designed specifically for use on Delphi-equipped Harley-Davidson® motorcycles from 2001 through 2022. Use of Mastertune BT software and installation of custom calibrations will likely cause your motorcycle to be non-compliant under U.S. EPA, C.A.R.B., and other emissions laws, rules and regulations.

PLEASE DO NOT INSTALL CUSTOM CALIBRATIONS AND OPERATE YOUR MOTORCYCLE ON PUBLIC ROADS without first checking to see if it's legal for you to do so.

The software is to be used to develop calibrations for specific parts, so that a manufacturer or supplier can use those parts with the custom calibration in their emission legal product or for racing purposes ONLY.

MasterTune BT works with USB and Bluetooth TTS communications interfaces. Some features may not be supported on all communications interfaces.

Note that MasterTune BT licensing is associated with the programming interface. A communications interface is licensed to program one vehicle, and the communications interface will 'lock' to the vehicle the first time it is used for programming.

MasterTune BT includes the following key features:

• Saves the original factory calibration automatically.
• Easily restore the original factory calibration back into the ECM.
• Preset limits to prevent adjusting values beyond reasonable settings.
• Stores original and the last table saved edits so tuner can return to previous configuration.
• Comparison functions quickly identify changed regions in tables.
• 2-D and 3-D graphing of tables to help visualize tuning maps.
• Ability to print table graphs and table values.
• Supports tuning using wideband O2 sensors. Requires an analog (green) communications interface.

Some of the calibration adjustments include:

• Spark Advance, front and rear
• Knock Control
• Volumetric Efficiency, front and rear
• Rev Limit
• AE/DE fueling
• EITMS settings
• Idle Speed
• Start/Warmup fueling
• Primary Gearing changes
• Fuel Injector size
• Engine Displacement
• AFR/Lambda Target
• NOTE: Not all features are available in all calibrations.