The GiroDisc slotted rear rotor for the Ferrari 458 Challenge is a rear-specific rotor with slotted faces to assist in removing pad residue and gases from the pad contact area. That slotting supports more consistent pad contact during repeated deceleration events. This rotor is matched to the rear braking application on the 458 Challenge as stated in the product description.
GiroDisc Ferrari 458 Challenge Slotted Rear Rotors