Originally Posted by Blackpearl
Turns out its the 14" front rotor, 4 piston caliper setup, and he had 12" rear rotor GT500 caliper setup from like a 2012 car would have. I bought it all. Probably just going to install the front, and sell the rear setup. Its a bit of an upgrade over stock my GT rear brakes, but I am not going to mess with it.
If it's from a 2012 and it's a front and rear set, then it's not worth even touching the rear, only do the front. If it's from a 13-14 GT500 then there is a difference in both front and rear, it comes with 6 piston front calipers and bigger rear brakes. As u can see to install the rear calipers on the set isn't a clean job http://youtu.be/dDT3-nwSQD8
Since your set is from a 2012 GT500, then just do the fronts