They're knock-offs from a Volk Racing wheel. The centercap actually says "Volkner Racing". Numerous companies sell them under various names. I think the easiest name to find them under is "Exel Radius." I bought mine under the style name "Formula Mesh" with no brand name. You can get them in Silver, Gunmetal, or Hyper Black.
I paid $1000 shipped with tires from Importhookup.com. WheelMax sells the Exel Radius for about the same price.
