This might be a dumb question but all the aftermarket parts I have found only show for the 2.5 and WRZ. I am assuming that if i buy sway bars for the 2.5 they would work. Can anyone point me in the right direction?

 

The 2.5i, OBS, 2.5GT, and WRX all have the same undercarriage. Anything labeled for one of these models will fit all of them. This goes for stuff like; wheels, suspension, swaybars, and chassis bracing.

There is only one exception and that is the front sway bar. A turbo swaybar (2.5GT and WRX) won't fit on a NA (2.5i and OBS) because of the exhaust routing. AFAIK, RalliTEK is the only place that sells a NA specific front swaybar.