Beware. According to the DBA catalog, the DBA 5040 (5000-series of the 040 rotor) is 296mm and 28mm wide - that fits the 2004 GTO only. This is the rotor I was sent when I bought a DBA front rotor last month that DBA thought was an 05 OEM replacement (05 rotors are 320mm and 32mm). Less than 30 days ago, I sent pictures to DBA of the 05 rotors and close-ups of part no. stampings because they still were unsure whether standard equipment on the US 05 GTO was 320mm or 330mm which is what is on the front of the HSV GTO.
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