Long story short, found too good of a deal to pass up on a big brake kit (front and back) that didn't come with rotors.

It requires a 330mm rear, which is what is stock on the Evo X. So far, the only thing I could find was that the center hole of the X is 80mm big and 8/9 are 90mm. No big deal as it could just be bored out a little. I just want to know if everything else will be alright for fitting the X rear rotors on an 8/9 or are there other problems like too small to fit over the ebrake pads.