2019 - 2023
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Order This File Ask a QuestionThe Mercedes GLC 300 - 258hp (2019 - 2023) produces 258bhp and 370Nm in standard form. Our Stage 1 ECU tuning file raises output to 275bhp and 450Nm, a gain of 17bhp and 80Nm, with no hardware modifications required. The file is delivered through the ByteFlash Portal and is ready to write to the vehicle.