Premium Plain 1-Piece Front and Rear Brake Rotor Set (KT-FRR-P-B-006461) by SP Performance®. Quantity: 4 Per Pack. SP Performance Plain Brake Rotors provide great stopping power, while looking amazing. All SP Performance Brake rotors are machine balanced and disc ground and meet OEM specification. The Plain Brake rotors are direct replacements to your existing brake rotors and require no brake system modifications.