I have an internally gated turbo sitting here in my home right now, looking at it would be kinda hard to do, but the possibility exists. First off you would have to know how to weld CAST, or pay someone a fair amount to do this for you. This would seal off the whole internal gated part. Then you would have to create a manifold with an external gate on it, which isnt really all that difficult and plub it in. Thats what I can see from looking at this thing.