The Citroen Relay 2.2 BlueHDI 120hp (2019 ->) produces 120bhp and 310Nm in standard form. Our Stage 1 ECU tuning file raises output to 185bhp and 430Nm, a gain of 65bhp and 120Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.