Seeing that they are supposed to have a center cap on them leads me to believe they are "older" rims. Most of the new ones in that style have exposed lugs. Thats the trend. I can't seem to find any like that anywhere, the closest so far has been the ssr comps.
Anyway, do you have any clues for us? What did they come off of? And how do you know its japanese? Any other info would be teh roxors.