The rules for BSR-spec cars state that you have to keep stock sized brake rotors but that they may be cross-drilled or slotted. We offer these extremely high quality Zimmermann units that are cross-drilled to help keep brake fade at bay. They also come with Zimmermann's proprietary "Coat-Z" anti-corrosion coating so that your rotor hats will stay looking great indefinitely.
Zimmermann Cross-Drilled Front Brake Rotor with Coat-Z Corrosion Protection (2 per car, sold individually)
Zimmermann Cross-Drilled Rear Brake Rotor with Coat-Z Corrosion Protection (2 per car, sold individually)