The Porsche 911 R 500hp (2016 - 2018 (991.2)) produces 500bhp and 460Nm in standard form. Our Stage 1 ECU tuning file raises output to 525bhp and 485Nm, a gain of 25bhp and 25Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.