The Mercedes Citan 111 CDI 110hp (2013 - 2018) produces 110bhp and 240Nm in standard form. Our Stage 1 ECU tuning file raises output to 130bhp and 300Nm, a gain of 20bhp and 60Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.