2019 - 2023
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Order This File Ask a QuestionThe Mercedes GLC 300de 306hp (2019 - 2023) produces 306bhp and 700Nm in standard form. Our Stage 1 ECU tuning file raises output to 335bhp and 760Nm, a gain of 29bhp and 60Nm, with no hardware modifications required. The file is delivered through the ByteFlash Portal and is ready to write to the vehicle.