When I lowered my car the rear camber didn't get affected nearly as much as the front. The front was terrible, but for the back all I needed was the bolts and spacers. I don't know the exact amount of camber I had though. The bolts arent expensive at all, and mine was in a 91 accord so it may be a bit different. I just got that because it was cheaper and my rear wasn't very bad at about 2.5" or so. The control arms for the rear will definately give you more adjustment.