The Lexus IS 300 (2.0T) 241hp (2016 - 2020) produces 241bhp and 350Nm in standard form. Our Stage 1 ECU tuning file raises output to 265bhp and 410Nm, a gain of 24bhp and 60Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.