The Citroen C3 1.4 HDi 8V 70hp (2002 - 2010) produces 70bhp and 150Nm in standard form. Our Stage 1 ECU tuning file raises output to 90bhp and 200Nm, a gain of 20bhp and 50Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.