You do NOT need camber kits!
They are nothing but a waste of money.
I recently put the Eibach Sportlines on my car (2 inch drop all around), and I asked my gf's dad if I need a camber kit. He said no.
I took it to NTB to have an alignment done, and they asked if I had a camber kit. I told them, no, you can acheive the correct camber without the kit.
An hour later, I looked at the print-out that they gave me with the before and after camber readings, and I was right.
Nothing but a waste of money.