Quality rotors for low grade rotor price. I believe they came off the Cadillac or the Hellcat. Not sure how to tell. 2 piece rotors are 390mm. 1 piece rotors are 350mm. All are 5 lug. Excellent condition...Only used 1 day. (The boss changes them after every race.) $60 for a pair if you pick them up. I'm at the I-17 and Deer Valley. Email me at [email protected] with a contact number for me to call