The Renault Master 2.3 DCI 125hp (2010 - 2014) produces 125bhp and 310Nm in standard form. Our Stage 1 ECU tuning file raises output to 155bhp and 430Nm, a gain of 30bhp and 120Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.