The Peugeot 407 1.6 HDiF 16V 109hp (2004 - 2011) produces 109bhp and 240Nm in standard form. Our Stage 1 ECU tuning file raises output to 135bhp and 300Nm, a gain of 26bhp and 60Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.