The Bentley Continental GT 4.0 TFSi V8 507hp (2011 - 2016) produces 507bhp and 660Nm in standard form. Our Stage 1 ECU tuning file raises output to 640bhp and 900Nm, a gain of 133bhp and 240Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.