I used SSBC slotted rotors with stock calipers and they fit my 14x7 Ralley II's. I have two different sets of 14x7 Ralley II's with different codes and both sets fit.

I did not buy a kit to convert my brakes. I'm sure I didn't save any money in the long run. The used parts I bought were used as cores, and I kept finding things that I didn't have.

If SSBC says your kit will fit under 14" wheels buy it. If your wheels don't fit, I'll sell you my spares.