The Vauxhall Meriva 1.4 Turbo 120hp ((B) - 2014 ->) produces 120bhp and 175Nm in standard form. Our Stage 1 ECU tuning file raises output to 165bhp and 265Nm, 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.