The Porsche 911 3.6i 320hp (1997 - 2006 ( 996 )) produces 320bhp and 370Nm in standard form. Our Stage 1 ECU tuning file raises output to 338bhp and 385Nm, a gain of 18bhp and 15Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.