The Peugeot 508 2.0 HDi 140hp (2010 - 2014) produces 140bhp and 320Nm in standard form. Our Stage 1 ECU tuning file raises output to 175bhp and 380Nm, a gain of 35bhp and 60Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.