Front endlink bushings

Im changing to ES bushings on my car but i seemed to have misplaced the front swaybar endlink bushings and my question is. Is it better to try to locate some more ES endlink bushings or would OEM ones work ok? Im sure the ES ones would be better but i cant seem to be able to find just those endlink bushings for sale anywhere. So if someone could point me in the right direction or give me some pointers it would be great. The bushings that came on my car are not stock but they are pretty beat up and torn so i will need to replace them.

http://www.energysuspensionparts.com/proddetail.asp?prod=16.8104

Thank you. I looked on their home page but i guess im just clueless:) im going to order those.