The Holden Trax 1.8L 16v 140hp (2013->) produces 140bhp and 175Nm in standard form. Our Stage 1 ECU tuning file raises output to 170bhp and 235Nm, a gain of 30bhp and 60Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.