The Dodge Charger SRT8 8.1 V8 432hp (2006 - 2010) produces 432bhp and 569Nm in standard form. Our Stage 1 ECU tuning file raises output to 460bhp and 608Nm, a gain of 28bhp and 39Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.