What Turbo In A Legacy B4 RSK

[Subaru Kitten]

Hi Guys,

I am a new member with an issue with one her turbo's!  :-(  My car is a Legacy B4 RSK.  Its a Jap import and I am getting all sorts of conflicting opinions whether it is a ball bearing type turbo or a non ball bearing one - a journal type lubricated by oil.  Also depending on the manufacturer I have been told I may have to buy a new one from a main dealer because a IHI one can only be refurbed if the problem is the piston rings as it is impossible to get any other parts. 

This is all new to me but I really love to learn about my car so does anyone have any knowledge of this?

All comments gratefully received. :-)

Thanks so much!!