The Alfa Romeo Giulietta 2.0 JTDm 150hp (2016 ->) produces 150bhp and 380Nm in standard form. Our Stage 1 ECU tuning file raises output to 215bhp and 460Nm, a gain of 65bhp and 80Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.