I haven't got to try this yet, but I had a couple made. I'm planning on putting twin turbos on a car I have. I took the measurements from a 2002 GMC sierra (5.3 liter lm7) this will probably work on a lot of other gm engines. Like I said I haven't got to try them so I'm not sure if they will work, but I think they will. The turbo flange is a T3. The picture shown is when I was going to make it a 3 piece design, but now it's a one piece design.
