The GiroDisc 300mm slotted rear ring for 1997–2009 Audi S4 (B5/B6/B7) is a size-specific replacement ring listed for those S4 rear assemblies across the B5–B7 generations. It supplies the 300mm slotted rotor surface pattern specified for those model years. Verify your Audi generation and rear rotor sizing to ensure this ring matches the vehicle’s braking setup.
GiroDisc 97-09 Audi S4 (B5/B6/B7) 300mm Slotted Rear Rings