F34 LCI - 2016 ->
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Order This File Ask a QuestionThe BMW 3 Series GT 340i 326hp (F34 LCI - 2016 ->) produces 326bhp and 450Nm in standard form. Our Stage 1 ECU tuning file raises output to 400bhp and 580Nm, a gain of 74bhp and 130Nm, with no hardware modifications required. The file is delivered through the ByteFlash Portal and is ready to write to the vehicle.