The Cadillac ATS 2.0 Turbo 276hp (2013 ->) produces 276bhp and 353Nm in standard form. Our Stage 1 ECU tuning file raises output to 300bhp and 450Nm, a gain of 24bhp and 97Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.