The Alfa Romeo 156 2.4 JTD 150hp (2002 - 2005) produces 150bhp and 304Nm in standard form. Our Stage 1 ECU tuning file raises output to 180bhp and 370Nm, a gain of 30bhp and 66Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.