The Citroen C4 Picasso / C4 SpaceTourer 2.0 HDI 138hp (2006 - 2013) produces 138bhp and 320Nm in standard form. Our Stage 1 ECU tuning file raises output to 165bhp and 410Nm, a gain of 27bhp and 90Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.