yes you can get DC2R rear sway bars to fit into an EG. but you must get a reinforcement kit as well, or risk having your subframe being torn out literally. the 2 most popular brands are ASR (A Spec Racing) and Beaks. i myself have the DC2R 22mm with Beaks Subframe Reinforcement Kit.
it is the best mod i have done so far. although i must say that i would feel much more comfortable having gone with ASR. The Beaks you must drill out a couple of holes, where as the ASR is straight bolt on. ASR is also a rear tie bar, so you get 2 in 1.
you may use your standard rear sway bar end link, will be straight bolt on to the DC2R sway bar.