The Ford Mustang 2.3 Ecoboost 290hp (2018 ->) produces 290bhp and 450Nm in standard form. Our Stage 1 ECU tuning file raises output to 320bhp and 520Nm, 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.