The Mercedes E 63 AMG 514hp (W211 - 2006 - 2009) produces 514bhp and 630Nm in standard form. Our Stage 1 ECU tuning file raises output to 530bhp and 660Nm, a gain of 16bhp and 30Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.