GiroDisc 08-16 Audi S4/S5 (B8) Slotted Rear Rings

These GiroDisc rear rotor rings are built with a unique two-piece design, featuring a lightweight, anodized aluminum hat bolted to a cast iron friction ring. This construction helps reduce unsprung weight, which can make a noticeable difference in how your Audi S4 or S5 handles, especially during spirited driving or track use. The friction rings themselves are precision-machined with slots that help to vent gases and dust away from the pad surface. This keeps the pads cleaner and allows them to maintain consistent contact with the rotor, improving braking performance and reducing the chance of fade under heavy use.

The friction rings are made from a high-carbon cast iron, chosen for its durability and ability to handle the heat generated during braking. The slots are designed to work with most common brake pad compounds, helping to sweep away spent pad material and moisture. This two-piece design also allows for thermal expansion of the friction ring without putting stress on the hat, which can help prevent warping over time. Installation is straightforward, as these are designed to be a direct replacement for your factory rear rotors, utilizing the original brake calipers and mounting hardware.

When you're looking to get the most out of your braking system, especially if you plan on track days or aggressive street driving, these GiroDisc rotor rings are a solid option. They offer an improved braking experience over standard solid rotors by managing heat and pad contamination more effectively. Remember to consult your vehicle's service manual or a qualified mechanic for specific installation procedures and torque specifications.