The Citroen C4 1.2 PureTech 130hp (2015 - 2019) produces 130bhp and 230Nm in standard form. Our Stage 1 ECU tuning file raises output to 145bhp and 270Nm, a gain of 15bhp and 40Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.