The Vauxhall Vectra 2.0 DTI 16v 100hp ((C) - 2002 - 2009) produces 100bhp and 205Nm in standard form. Our Stage 1 ECU tuning file raises output to 125bhp and 255Nm, a gain of 25bhp and 50Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.