The Porsche Cayenne 4.8 Turbo 500hp (958 - 2010 - 2014) produces 500bhp and 700Nm in standard form. Our Stage 1 ECU tuning file raises output to 590bhp and 800Nm, a gain of 90bhp and 100Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.