The Citroen C5 3.0i V6 210hp (2001 - 2008) produces 210bhp and 285Nm in standard form. Our Stage 1 ECU tuning file raises output to 220bhp and 300Nm, a gain of 10bhp and 15Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.