The Land Rover Range Rover / RR Sport P400e 404hp (2018 - 2021 (L460/L461)) produces 404bhp and 640Nm in standard form. Our Stage 1 ECU tuning file raises output to 425bhp and 690Nm, a gain of 21bhp and 50Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.