Rear Camber (ingalls, SPC, etc.)

I searched around all over these forums and the internet and still have not found the answer to my question. If i wanted to run a lot of negative camber in the rear, like ~-8 degrees. Are there any kits made that can achieve that without modification?

I'm lowered on function and form type 1's and I'm sitting at ~-3 degrees right now no other modifications.

I know many of you will disagree with my choice, but any help is appreciated.