2004 - 2006
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Order This File Ask a QuestionThe Pontiac GTO 6.0 V8 400hp (2004 - 2006) produces 400bhp and 542Nm in standard form. Our Stage 1 ECU tuning file raises output to 420bhp and 570Nm, a gain of 20bhp and 28Nm, with no hardware modifications required. The file is delivered through the ByteFlash Portal and is ready to write to the vehicle.