The Fiat 500 X 1.4T MultiAir 170hp (2015 - 2018) produces 170bhp and 250Nm in standard form. Our Stage 1 ECU tuning file raises output to 180bhp and 300Nm, a gain of 10bhp and 50Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.