Crap, thats a good question. I have that turbo on my gsx, its great. I'll take a look at my car to refresh my memory, and let you know. Funny thing is, I made the O2 housing.
Anyway, I think it should work just fine with a spacer plate. How are you planning on doing the wastegate though? I'll find out about pricing and let you know. I should probably just update that whole page sometime soon.