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Order This File Ask a QuestionThe BMW X5 M E70 - 5.0D 381hp (All) produces 381bhp and 740Nm in standard form. Our Stage 1 ECU tuning file raises output to 420bhp and 800Nm, a gain of 39bhp and 60Nm, with no hardware modifications required. The file is delivered through the ByteFlash Portal and is ready to write to the vehicle.