Roaring toyz man, they are second to none. It will run you $550 to extend it, 2,4,6, etc.. . That is raw metal though, it is $700 for a powdercoat and I believe $9xx for chrome. I am looking into doing this on my YZF600 swinger (6 over). But yea they don't make extensions so the only way is custom or machine an extended R6 one on there <- propably would end up costing nearly the same.