The Porsche 911 3.6i Turbo 480hp (2004 - 2011 ( 997 )) produces 480bhp and 620Nm in standard form. Our Stage 1 ECU tuning file raises output to 520bhp and 720Nm, a gain of 40bhp and 100Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.