I believe Eibach says the sportlines will require a camber kit, but they also say the prokit is alignable to factory specs. In a momentary lapse of reason, I approved the installation of a rear camber kit, so I own it whether I needed it or not.
I bought a set with my CJ Pony lowering springs. I had So Cal Suspension install the set. Nick the owner told me it really made his job easy with the cambers getting the front end aliened.