The Citroen C4 Picasso / C4 SpaceTourer 1.6 BlueHDi 120hp (2017 ->) produces 120bhp and 254Nm in standard form. Our Stage 1 ECU tuning file raises output to 145bhp and 350Nm, a gain of 25bhp and 96Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.