The Opel Antara 2.4i 16v 140hp (2007 - 2011) produces 140bhp and 220Nm in standard form. Our Stage 1 ECU tuning file raises output to 150bhp and 235Nm, a gain of 10bhp and 15Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.