The Porsche 911 3.8i Turbo-S 530hp (2004 - 2011 ( 997 )) produces 530bhp and 700Nm in standard form. Our Stage 1 ECU tuning file raises output to 580bhp and 800Nm, a gain of 50bhp and 100Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.