WOW mybiz , first scat cat i have ever seen with a diamond plate. it ever has the square stamp in the center of the diamond plate for the scat cat decal.
one thing that i have notices on the grand prix models with the diamond plate. it has only a single upper tube and also going down from the tripple tree. the other forks on the grand prix bikes are like most scat cat bikes with the square plate welded to the tripple tree area.