The Fiat Doblo 2.0 M-JTD 135hp (2015 ->) produces 135bhp and 320Nm in standard form. Our Stage 1 ECU tuning file raises output to 165bhp and 380Nm, a gain of 30bhp and 60Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.