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Order This File Ask a QuestionThe Case MXU 125 6.7 125hp (All) produces 125bhp and 566Nm in standard form. Our Stage 1 ECU tuning file raises output to 155bhp and 680Nm, a gain of 30bhp and 114Nm, with no hardware modifications required. The file is delivered through the ByteFlash Portal and is ready to write to the vehicle.