The Ford F-150 3.5T Ecoboost 375hp (2015 - 2017) produces 375bhp and 637Nm in standard form. Our Stage 1 ECU tuning file raises output to 400bhp and 700Nm, a gain of 25bhp and 63Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.