The Fiat Croma 1.9 JTDm 136hp (2005 - 2008) produces 136bhp and 320Nm in standard form. Our Stage 1 ECU tuning file raises output to 180bhp and 380Nm, a gain of 44bhp and 60Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.