The Toyota Corolla 1.4 D-4D 90hp (2002 - 2007) produces 90bhp and 200Nm in standard form. Our Stage 1 ECU tuning file raises output to 115bhp and 250Nm, a gain of 25bhp and 50Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.