The Alfa Romeo 156 1.9 JTD 105hp (1997 - 2003) produces 105bhp and 255Nm in standard form. Our Stage 1 ECU tuning file raises output to 140bhp and 315Nm, a gain of 35bhp and 60Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.