make sure the turbo manifold is TIG-welded using SUS304 metal so it wont expand under extreme heat. It may not be strong as cast iron but it hold it places.
other kind of metal will expand and may crack easily.
my friends ask me but i dont have a answer,so i decide to ask you guys je la....did anyone ever heard that is200 engine swap with JZA80 pass in puspakon inspection???......and how much price JZA80...