legacycentral bbs

I wanted to upgrade the swaybar in the rear of my 1993 subaru L 4wd wagon
I looked under the car and there was no swaybar insight, no brackets, nothing.
Some on told me i need a contorol arm with the bracket? They also said i need brackets?
Has any one ever done this?
Where would i get all these ...

I just bought Wrx rims and the stock tires on them suck!
Could some one recommend a good tire?