No, it does not. Cat converters are only required if your car and/or engine were originally fitted with one.
Thanks norbie that answer makes sense. I was a tad concerned about
that. once my leeka is back on the road I'll take some shots of
what I have done relating to my origianl post and put a page on my
site for all to see. IE cold intake on an ra40 without major mods.
cheers