The Alfa Romeo 156 2.4 JTD 20V 175hp (2002 - 2005) produces 175bhp and 385Nm in standard form. Our Stage 1 ECU tuning file raises output to 220bhp and 480Nm, a gain of 45bhp and 95Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.