2019 ->
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Order This File Ask a QuestionThe McLaren GT 4.0 V8 620hp (2019 ->) produces 620bhp and 630Nm in standard form. Our Stage 1 ECU tuning file raises output to 820bhp and 880Nm, a gain of 200bhp and 250Nm, with no hardware modifications required. The file is delivered through the ByteFlash Portal and is ready to write to the vehicle.