GiroDisc D2-143 Slotted Rear Replacement Rotor Rings 300mm - 1997-2009 Audi S4 B5, B6 and B7

These are GiroDisc D2-143 slotted rear rotor rings, 300mm in diameter, for the 1997-2009 Audi S4 across the B5, B6, and B7 generations. Rings are the friction portion of a two-piece rotor.

Specifications

• Manufacturer part number: D2-143
• Type: replacement rotor rings for a two-piece rotor
• Diameter: 300mm
• Surface: slotted
• Position: rear axle

Buying rings rather than complete rotors lets you reuse the aluminum hats and float hardware already fitted to the car, which turns a worn rear disc into a simple ring change. The slotted face pulls gas and pad material off the friction surface so the pad keeps a clean, predictable bite when the brakes get hot on a long descent or a track session.

The 300mm diameter is specific to the rear brakes on these S4 generations, so check what is currently on the car before ordering. This listing covers the rings only, not a complete two-piece rotor assembly, and it does not include hats, bobbins, or hardware. Confirm fitment by year, trim, and brake package before ordering, and verify that your existing hats accept this ring diameter.

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