Girodisc 2-Piece Rear Rotors A2-130 for Audi S4/S5 B8

If you’re looking to upgrade your braking game without going all out on a big brake kit, the Girodisc 2-Piece Rear Rotors are a solid choice. These aren’t just any rotors; they’re a direct replacement for your factory discs, meaning you won’t have to mess around with modifications. Just bolt them right onto your Audi S4 or S5, and you’re good to go.

What’s cool about these rotors is that they’re designed to keep your factory brake bias and ABS efficiency intact. That means you get the benefits of lightweight performance without sacrificing the feel and control you’re used to. And let’s be honest, reducing that rotational and unsprung weight? It’s a game changer for quicker acceleration and better suspension response.

The central hat of the rotor is crafted from U.S.-sourced 6061-T6 aircraft-grade aluminum. It’s tough stuff, built to last. The disc itself is made from Girodisc’s proprietary cast iron, all poured and machined right here in the USA. Plus, the curved vane design is a nod to racing technology, acting like a centrifugal pump to push cooling air through the disc, which is crucial for maintaining performance during those spirited drives.

Now, let’s talk about the floating mount system. It uses 10 high-strength alloy steel drive pins, made to Girodisc’s specs and cadmium plated for corrosion resistance. These pins handle the braking load while allowing for axial and radial float between the hat and disc. They’re secured with class 12.9 cap screws and hardened washers, so you know they’re built to withstand some serious braking action. To keep things quiet when you first start braking, we’ve added anti-noise spring washers on the rotor side. This setup lets the rotor expand with heat but keeps the rattle at bay, ensuring a smooth and quiet ride.