Thanks Evan. After I posted I also found a thread on RS25 that apparently you can make them fit, on the outside of the endlinks, but it was too iffy and questionable for me. I'm going to keep looking. Thanks again.
A stock WRX swaybar is a bit fatter and most people are giving them away for free these days on NABISCO. Otherwise, go with a used whiteline, cusco or perrin.
So Mike, did you bolt yours to the outside of your endlinks? Sorry about all the questions, I'm just trying to learn all the different ways of doing things. :
Nope... the STi bar is a direct swap onto the Forester... The forester has more bits in common w/ the STi than the WRX. Does your RS have "C" shaped endlinks?