The Oldsmobile Alero 2.4i 150hp (1998 - 2004) produces 150bhp and 210Nm in standard form. Our Stage 1 ECU tuning file raises output to 170bhp and 235Nm, a gain of 20bhp and 25Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.