The Porsche 911 3.0T Carrera / 4 370hp (2016 - 2018 (991.2)) produces 370bhp and 450Nm in standard form. Our Stage 1 ECU tuning file raises output to 475bhp and 620Nm, a gain of 105bhp and 170Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.