The Peugeot 4007 2.2 HDi 156hp (2007 - 2011) produces 156bhp and 380Nm in standard form. Our Stage 1 ECU tuning file raises output to 185bhp and 450Nm, a gain of 29bhp and 70Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.