The Roewe 550 1.8i 130hp (2008 - >) produces 130bhp and 168Nm in standard form. Our Stage 1 ECU tuning file raises output to 140bhp and 185Nm, a gain of 10bhp and 17Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.