The Alfa Romeo 156 2.0 JTS 165hp (2002 - 2005) produces 165bhp and 206Nm in standard form. Our Stage 1 ECU tuning file raises output to 175bhp and 220Nm, a gain of 10bhp and 14Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.