The Ford Flex 3.5 V6 287hp (2009 - 2014) produces 287bhp and 344Nm in standard form. Our Stage 1 ECU tuning file raises output to 305bhp and 375Nm, a gain of 18bhp and 31Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.