FTW is the same as WTF, just in a different order ... :-)
but on a serious note, if you get ford racing CAI an tune (FRPP) installed by a dealer you keep all the warranty and it claims adding the same ~20hp as other CAIs AND it does NOT turn of any emission-related sensors. you can find it on ford racing website.

 

It's been said here in the forum that the FRPP CAI & tune doesn't have the kick that other custom tunes are. I believe that Ford's tune may not be as aggressive as the other tuners make theirs. And, I've had my Stang to the shop for warranty work with my Steeda CAI installed and it was never a problem.

 

I had the dealership replace the throttle body under warranty, and brought it in with the
CAI on it.
You shouldn't worry about it.