The GiroDisc slotted front rings for 2017 and later Audi S4, S5 and SQ5 (B9) are produced as direct‑fit rotor rings tailored to the B9 platform. Supplied to match the factory front brake arrangement, they provide a slotted rotor surface intended to suit the specified caliper and pad interfaces on those Audi models while preserving correct fit and pad shape.
GiroDisc 2017+ Audi S4/S5/SQ5 (B9) Slotted Front Rings