So I'm currently running a MSM turbo setup on my NA, mainly because I'm an idiot who thought I'd be good with 220hp, but I'm not. Needless to say, the upgraded turbo for this setup seems to be non-existant, so I'm always coming across wrx turbos, which seem to be a decent upgrade with a pretty similar center cartridge. So I have an extra turbo, ill be attempting to mate it to the MSM using an adapter flange. Here is the mockup thus far:

Ill have to do a little modification to this ac bracket, but it fits sort of...

Had to notch the block out about 3/8" for the compressor housing.
That's about it so far...anyone have ideas for running a different water outlet?

 

But why? There are aftermarket TD04 manifolds that would work with a WRX turbo if that is what you want. You are going to go through a lot of headaches just to use the MSM manifold which is nothing special. Or just switch to a T25 or T3 setup and have all the options you could want. I understand the desire to use what you already have, but I don't think its worth it imo.