B8 - 2012 - 2017
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Order This File Ask a QuestionThe Audi RS4 4.2 FSI 450hp (B8 - 2012 - 2017) produces 450bhp and 430Nm in standard form. Our Stage 1 ECU tuning file raises output to 475bhp and 460Nm, a gain of 25bhp and 30Nm, with no hardware modifications required. The file is delivered through the ByteFlash Portal and is ready to write to the vehicle.