The Kia Rio 1.4 CRDi 90hp (2015 - 2016) produces 90bhp and 220Nm in standard form. Our Stage 1 ECU tuning file raises output to 125bhp and 290Nm, a gain of 35bhp and 70Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.