The Citroen C1 1.0 e-VTI 82hp (2014 ->) produces 82bhp and 116Nm in standard form. Our Stage 1 ECU tuning file raises output to 90bhp and 130Nm, a gain of 8bhp and 14Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.