The Mercedes Vito 109 CDI 88hp (1600cc) (W447 - 2015 - 2019) produces 88bhp and 230Nm in standard form. Our Stage 1 ECU tuning file raises output to 140bhp and 340Nm, a gain of 52bhp and 110Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.