The Alfa Romeo 156 1.9 JTD 150hp (1997 - 2003) produces 150bhp and 305Nm in standard form. Our Stage 1 ECU tuning file raises output to 185bhp and 380Nm, a gain of 35bhp and 75Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.