The Fiat 500 X 0.9 TwinAir 85hp (2019 ->) produces 85bhp and 145Nm in standard form. Our Stage 1 ECU tuning file raises output to 95bhp and 190Nm, a gain of 10bhp and 45Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.