The Dodge Charger R/T 5.7 V8 370hp (2006 - 2010) produces 370bhp and 536Nm in standard form. Our Stage 1 ECU tuning file raises output to 390bhp and 555Nm, a gain of 20bhp and 19Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.