S14 brakes

S14 calipers on an S13, do i need to buy new rotors or will stock suffice?

What were the callipers off, and ABS car or a NON-ABS one? I have S14 ABS ones on my S13 and u need rotors too, They re almost 2 inches bigger that my stock CA brakes. Dont know about NON-ABS ones though.