The Renault Megane RS Trophy 1.8 Turbo 300hp (2021 ->) produces 300bhp and 400Nm in standard form. Our Stage 1 ECU tuning file raises output to 310bhp and 440Nm, a gain of 10bhp and 40Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.