The Land Rover Discovery 3.0 TD6 258hp (2017 - 2020) produces 258bhp and 600Nm in standard form. Our Stage 1 ECU tuning file raises output to 300bhp and 650Nm, a gain of 42bhp and 50Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.