The Vauxhall Antara 2.0 CDTi 126hp (2007 - 2011) produces 126bhp and 295Nm in standard form. Our Stage 1 ECU tuning file raises output to 185bhp and 400Nm, a gain of 59bhp and 105Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.