I recently saw a video about a predator h2 build that advertised the ability to raise and lower the ride height by up to 8"

when i called predator and asked about it they guy seemed kind of squirly about it and said he cant remember specifically how they did it.

So three questions for the forum.

1) does anyone know of a kit that does this?
2) does anyone have first hand experience with something like this. (please refrain from making comments about why you think this is stupid etc. Keep it to your personal experience with it)
3) having never owned anything with an air suspension does an air suspension have the same capabilities / response as coils? Would there be any adverse perfomance from air vs coil?