The Hyundai Sonata 2.0 CRDi 136hp (All) produces 136bhp and 305Nm in standard form. Our Stage 1 ECU tuning file raises output to 170bhp and 365Nm, a gain of 34bhp and 60Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.