The Citroen DS3 1.2 THP 110hp (2014 - 2015) produces 110bhp and 205Nm in standard form. Our Stage 1 ECU tuning file raises output to 130bhp and 250Nm, a gain of 20bhp and 45Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.