The Vauxhall Combo 1.7 CDTi 100hp ((C) - 2001 - 2011) produces 100bhp and 240Nm in standard form. Our Stage 1 ECU tuning file raises output to 135bhp and 305Nm, a gain of 35bhp and 65Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.