The Alfa Romeo 166 2.4 JTD 163hp (2003 - 2010) produces 163bhp and 385Nm in standard form. Our Stage 1 ECU tuning file raises output to 220bhp and 440Nm, a gain of 57bhp and 55Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.