This Stage 1 ECU file for the Fiat Qubo 1.3 JTD brings smoother power delivery and enhanced torque in everyday driving scenarios. Built around the Marelli MJ8DF ECU with software version 9744F592, it offers a smart balance between improved throttle response and long-term durability. Perfect for light commercial or city use, the calibration maintains factory reliability while giving you a stronger midrange.