The Citroen C3 1.6 HDiF 16V 110hp (2002 - 2010) produces 110bhp and 240Nm in standard form. Our Stage 1 ECU tuning file raises output to 135bhp and 290Nm, a gain of 25bhp and 50Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.