Those look very nice, if you pick up a set be sure to let us know how the install goes. I am not sure if they are ideal for the 5 point harness although I am sure they are adequate. I have done track events with the Porsche Club of America and I'm not sure if they would pass muster. They fit very well into the cockpit though.
(I just looked at their website, they sell a "Trips device" for the seat which properly locates the shoulder harness in the event of impact, probably a good addition if you are going to use the 5 points, not that you are it is just that they are in the photos)
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