The Peugeot 308 GT 1.6 THP 205hp (2013 - 2017) produces 205bhp and 285Nm in standard form. Our Stage 1 ECU tuning file raises output to 230bhp and 360Nm, a gain of 25bhp and 75Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.