Steeda rear swaybar. 96 cobra.

I just picked up a rear Steeda swaybar to replace the stock one (didn't have one when I bought it a year and 1/2 ago). I didn't take the time to research this too much, so what else am I going to need to put it in? Bushings (or is that for the front only)? Anything else? Am I going to notice a difference after I put it in? Fewer squeaks? How much better handling?