G29 - 2019 ->
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Order This File Ask a QuestionThe BMW Z4 20i 197hp (G29 - 2019 ->) produces 197bhp and 320Nm in standard form. Our Stage 1 ECU tuning file raises output to 250bhp and 440Nm, a gain of 53bhp and 120Nm, with no hardware modifications required. The file is delivered through the ByteFlash Portal and is ready to write to the vehicle.