2017 ->
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Order This File Ask a QuestionThe Mercedes X-Class 250d 190hp (2017 ->) produces 190bhp and 450Nm in standard form. Our Stage 1 ECU tuning file raises output to 210bhp and 500Nm, a gain of 20bhp and 50Nm, with no hardware modifications required. The file is delivered through the ByteFlash Portal and is ready to write to the vehicle.