The Mercedes S 63 AMG V8 Turbo 585hp (W222 - 2013 - 2017) produces 585bhp and 900Nm in standard form. Our Stage 1 ECU tuning file raises output to 660bhp and 1050Nm, a gain of 75bhp and 150Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.