C5 - 1999 - 2004
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Order This File Ask a QuestionThe Audi S6 4.2 V8 340hp (C5 - 1999 - 2004) produces 340bhp and 420Nm in standard form. Our Stage 1 ECU tuning file raises output to 360bhp and 450Nm, a gain of 20bhp and 30Nm, with no hardware modifications required. The file is delivered through the ByteFlash Portal and is ready to write to the vehicle.