The Alfa Romeo 166 2.4 JTD 136hp (1999 - 2002) produces 136bhp and 310Nm in standard form. Our Stage 1 ECU tuning file raises output to 170bhp and 380Nm, a gain of 34bhp and 70Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.