Rock,You can do replacement rotors and clean-up the calipers for around 300.00,
The factory rotors are 10.5 or 11 inch,The Vipers are 13 inch,Calipers are four piston over the stock two piston,Theres alot going on the the upgrade,
Theres always a way to do it cheaper,If you want a better performer,Drilled and Good pads can do that,I went for the 3000.00 because I wanted the Larger calpiers and rotors behind those large wheels
Scott can do the fronts for 850.00-1500.00 and that depends on the ROTORS,Factory will be cheaper,The Baer two peice and Rebuilt calipers powdercoated with new pads will get you at or around 1400-1500
Good-luck with whatever you STOP at
RICK