The Porsche 911 3.6i Turbo-S 450hp (1997 - 2006 ( 996 )) produces 450bhp and 620Nm in standard form. Our Stage 1 ECU tuning file raises output to 495bhp and 670Nm, a gain of 45bhp and 50Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.