The Alfa Romeo 147 1.9 JTD 170hp (2005 ->) produces 170bhp and 330Nm in standard form. Our Stage 1 ECU tuning file raises output to 190bhp and 390Nm, a gain of 20bhp and 60Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.