The Mazda 3 2.0 SkyActiv-G 120hp (2016 - 2018) produces 120bhp and 210Nm in standard form. Our Stage 1 ECU tuning file raises output to 175bhp and 230Nm, a gain of 55bhp and 20Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.