The Vauxhall Vivaro 1.6 CDTi 90hp (2014 - 2016) produces 90bhp and 260Nm in standard form. Our Stage 1 ECU tuning file raises output to 135bhp and 350Nm, a gain of 45bhp and 90Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.