Re: Agree posted by RobZ32 on November 13, 2013 at 06:05 PM
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All of them have the same exhaust wheel, it is also the same exhaust wheel on the GT2860RS. The GTX2860 has matching wheels on both sides, each larger size GTX has a larger compressor wheel, the mis-match is pretty large by the time you get to 67. The 67 has much increased lag and not much more power than the 63, similar to the mis-match of the GT2871R What comes in needs to go out.