The Buick Lacrosse 1.5 Turbo 170hp (2017 ->) produces 170bhp and 252Nm in standard form. Our Stage 1 ECU tuning file raises output to 195bhp and 300Nm, a gain of 25bhp and 48Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.