This new Motorcycle Diagnostic and Tuning Tool has specifically been developed for all Harley Davidson Models built from 1997 to 2016. This all in one unit includes the 4Pin (J1850) or 6Pin (CAN) and it works brilliantly even on a Marelli ECU. Maximus allows for reflashing stock ECUs and it’s capable of backing up and restoring original maps.

It includes either a 4 pin (J1850) or 6 pin (CAN) cable connector


  • Re-flash Stock ECU
  • Automatic Map Tuning
  • KeyFob Programming
  • Enable & Disable Alarm
  • Speedometer Calibration
  • Read & Clear Trouble Codes
  • View real-time engine parameters (RPM, Throttle Position Sensor, Battery Voltage, etc.) & system information
  • Android App
  • Bluetooth compatible
  • Maximus Module
  • Carry Case
  • Cables