The Land Rover Defender P525 (5.0) 525hp (2019 ->) produces 525bhp and 650Nm in standard form. Our Stage 1 ECU tuning file raises output to 560bhp and 700Nm, a gain of 35bhp and 50Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.