New in box. Opened and fitted but not used as aircraft was sold.
From Rotax:
Intelligent engine control unit.
Electronically controlling the air-fuel mixture, the Engine Control Unit, ECU for short, is implemented redundantly into the Engine Management System (EMS) to ensure a higher level of safety.
Digital engine health monitor.
The BRP Utility and Diagnostic Software, B.U.D.S. for short, serves as a digital health monitor for your Rotax aircraft engine.