The Citroen C3 1.0 PureTech 68hp (2013 - 2019) produces 68bhp and 116Nm in standard form. Our Stage 1 ECU tuning file raises output to 99bhp and 140Nm, a gain of 31bhp and 24Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.