The Peugeot 407 2.2 HDiF 170hp (2004 - 2011) produces 170bhp and 370Nm in standard form. Our Stage 1 ECU tuning file raises output to 210bhp and 440Nm, a gain of 40bhp and 70Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.