The DS 7 Crossback 1.6 Puretech 225hp (2017 ->) produces 225bhp and 300Nm in standard form. Our Stage 1 ECU tuning file raises output to 255bhp and 360Nm, a gain of 30bhp and 60Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.