there's a whole lot of people who have no camber problems with their sportlines - that said, I only droped my car 1.5, and the closest they could get my back tires was .2 degrees off, wich is easily within the specs of what the tire can handle, plus it improves handleing a bit. From what I heard though, if you take it to a GOOD allinment shop, they can make it work for you without the kit - if you do need a camber kit, they're not too expencive..