The Honda Civic 1.0 VTEC 129hp (2017 - 2020) produces 129bhp and 180Nm in standard form. Our Stage 1 ECU tuning file raises output to 150bhp and 240Nm, a gain of 21bhp and 60Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.