The Porsche Cayenne S 3.6T 420hp (958 - 2014 - 2017) produces 420bhp and 550Nm in standard form. Our Stage 1 ECU tuning file raises output to 460bhp and 620Nm, a gain of 40bhp and 70Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.