The Fiat Stilo 1.9 JTD 115hp (2001 - 2007) produces 115bhp and 255Nm in standard form. Our Stage 1 ECU tuning file raises output to 145bhp and 325Nm, a gain of 30bhp and 70Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.