The Alfa Romeo 147 1.9 JTD 126hp (2005 ->) produces 126bhp and 330Nm in standard form. Our Stage 1 ECU tuning file raises output to 175bhp and 380Nm, a gain of 49bhp and 50Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.