trina your design looks like a Leehmann(sp) manifold that the turbo audi quattros used and skoda uses on their WRC cars. Dahlback racing makes one for the 1.8t.
http://www.tjmmotorsport.com/store/p...cat=263&page=1
there is some good info posted here if your interested in reading through all the crap
http://forums.vwvortex.com/zerothread?id=1731880