Sorry for being a noob...which exact kit did you get? Was it this one? Also do the rotors become silver after use or do they stay black?
RB OE Caliper BBK (355/355) for Tesla M3 (Standard Model) (P/N 2602-K & 2608-K)
That one is for if you want larger front rotors. This is the one I got.
RB 2pc Rotor Kit (320/335) for Tesla M3 (Standard Model) (P/N 2597 & 2598) - Not Compatible With M3P Model