The Citroen DS5 1.6 THP 165hp (2011 - 2015) produces 165bhp and 240Nm in standard form. Our Stage 1 ECU tuning file raises output to 190bhp and 300Nm, a gain of 25bhp and 60Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.