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Order This File Ask a QuestionThe Chevrolet Corvette ZR1 6.2 V8 Compressor 647hp (All) produces 647bhp and 819Nm in standard form. Our Stage 1 ECU tuning file raises output to 677bhp and 840Nm, a gain of 30bhp and 21Nm, with no hardware modifications required. The file is delivered through the ByteFlash Portal and is ready to write to the vehicle.