I agree, well worth the money. I've had them on my car w/ stock 17's for a year and a half and love them. I went w/ the calipers w/ the white running horse on them.
Definitely worth the money, car stops way better. If I were you I would DEFINITELY also pick up the steel braided brake lines. Takes the 'mush' out of the pedal, and while you have the front tires and brakes apart and are bleeding the lines already the lines take only a few minutes to install.
The only downside is your (our) spare wheel won't fit !!!!!! I shelled out the bucks for the cobra 17" spare wheel and tire, it's my only car and realy need some thing to back me just in case! It's been a while , I think total cost was close to 300 bucks!! yea ouch!
I'm about to do this upgrade myself since my Saleen wheels make the stockers look small (and I want to stop better )
If I get a flat, I'll just throw all four of my stock bullits back on. Or just put the spare on the rear and a rear wheel on the front since I have the same tire size all the way around.