One or the other should not and they both come with height adjustments (washers or polyurethane) to adjust back to stock height. By both I mean mounts and brackets
oh and don't forget the hardware. I used this as an excuse to get a set of caliperfexion bolts, but that won't help you for the rears. Speaking of the rears they will cost you the most to retrofit if going on a GT, so again FTB.
buying these will save you some money on the FTB kit. Not a ton, but enough to make it worth it. Other things to consider are pads, I forgot how much I paid but it was enough to shock me. Pins and clip will run you another $67 or less depending on where you get it from. If you do get an FTB kit...
Status update:
After getting the pedal back I took to the road on a 4 hour trip. Not much braking on the highway, but there was one instance where I went to get on it and quickly realized traffic was coming to a complete stop. I went to use my super brakes and that's where things got a bit scary...