im back

i just bought a 2005 liberty 2.5 and i'm loving it.
im looking into getting a pair of 4 pot 99 wrx brakes but im wondering if the standard disc brake will fit? will it interfere with the abs as the standard ones are 2 pot? are they worth it?
also found an 01/02 STI strut brace, would it fit my car?
much appreciated
Jimmy