The Ford Mustang 5.2 V8 526hp (2015 - 2018) produces 526bhp and 582Nm in standard form. Our Stage 1 ECU tuning file raises output to 580bhp and 650Nm, a gain of 54bhp and 68Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.