The best way is to put the whole set from halfcut if you can affort it.
the disc you bought have a same diameter and thickness with your rear brake set?
Again from my tuning and set up for 1.6L 4age NA block can push up 499whp at RWD AE86 body.Amazing runing with low boost at calder park drag way in Australia,my buddy happy with 10.02sc 1/4mile.Look what we do at the...