2018 ->
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Order This File Ask a QuestionThe McLaren 600LT 3.8 V8 600hp (2018 ->) produces 600bhp and 620Nm in standard form. Our Stage 1 ECU tuning file raises output to 660bhp and 720Nm, a gain of 60bhp and 100Nm, with no hardware modifications required. The file is delivered through the ByteFlash Portal and is ready to write to the vehicle.