The GMC Acadia 3.6 V6 310hp (2017 ->) produces 310bhp and 367Nm in standard form. Our Stage 1 ECU tuning file raises output to 330bhp and 390Nm, a gain of 20bhp and 23Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.