The Mercedes CLS 63 AMG PPP 557hp (C218 - 2010 - 2014) produces 557bhp and 720Nm in standard form. Our Stage 1 ECU tuning file raises output to 620bhp and 900Nm, a gain of 63bhp and 180Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.