how much do you really get to cut in the rear. I know that there is a very limited amount that you can cut so how useful would these be?
I've never installed a set before so I can't comment on how much to cut. Just by looking at them, I don't think you cut any material. If I had a street driven 4Runner, I'd put them on there in a heartbeat but I'm building a crawler so they would get rubbed by the tires too much.
I think the main purpose is to hide some rust
and get some flare on those rear fenders.