The Mercedes E 350e Hybrid 286hp (W213 - 2016 - 2019) produces 286bhp and 550Nm in standard form. Our Stage 1 ECU tuning file raises output to 325bhp and 670Nm, a gain of 39bhp and 120Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.