caster camber plates?

Caster/camber plates install atop the strut towers. They allow a much wider range of adjustability on the front end alignment - more range of caster and camber, hence the name.

One of the Stang nerds will have to tell you what's involved in the install on your car; I can tell you what's involved on mine, but it won't help you much.

Allow you to align the front end of your car - a MUST if you have lowered the car at all if you want to have any alignment again.

In terms of installation, a good kit (I went with Steeda's) will include all you need - you supply the basic tools and the time/labor.