To answer your questions: the FRPP CAI is made by Steeda, Its C.A.R.B. legal, so if you live in a state with smog checks. Is it any good? depends on how much performance you want, I have one installed on my 2007 GT and i love it, it does provide a substantial gain!
not as much as an SCT or Predator. It comes with a warranty if a Ford dealer installs it.
it's the same CAI that comes on the Shelby GT. Hope This helps