Audi S4 / RS5 Brake Kit Guide: Track-Ready Upgrade

Even S4 and RS5 owners who never see an actual track day put more heat into their brakes than a typical sedan driver, simply by using the performance quattro AWD makes accessible on every on-ramp, mountain pass, and quick highway merge. That adds up over thousands of miles in ways the factory brake package was never sized for.

Ghost Brakes offers a complete bolt-on brake kit for the Audi S4 and RS5 — G11H18 drilled and slotted rotors with carbon ceramic pads, GEOMET coating, and a lifetime warranty. No caliper modifications required.

Shop this vehicle: Audi S4 / RS5 brake kits · drilled and slotted rotors · All products

Why S4 and RS5 Brakes Fade Sooner Than the Power Figures Suggest

Where OEM semi-metallic pads lose bite as they heat-soak lap after lap, factory rotors on the S4 and RS5 warp under exactly the kind of sustained hard braking these cars are built to deliver. That fade shows up first as a pulsation through the brake pedal under hard braking from high speed — a symptom S4/RS5 owners on factory rotors report far more often than owners of lower-powered A4 siblings, since quattro AWD and the turbocharged engine's extra weight load the front axle harder than on a comparable rear-drive sport sedan.

Ghost Brakes addresses that with a matched rotor-and-pad system: drilled and slotted rotors for heat evacuation, GEOMET coating for corrosion resistance, and carbon ceramic pads that hold consistent friction from a cold morning session to a hot afternoon canyon run.

What's in the Ghost Brakes Audi S4 Kit

• G11H18 drilled and slotted rotors (front and rear)
• Carbon ceramic brake pads — matched compound for our rotor face
• GEOMET full-surface corrosion coating
• All necessary hardware included
• Lifetime warranty — no mileage caps, track use included
• Free shipping

Installation and Bedding

Ghost Brakes S4/RS5 kits bolt directly to the factory quattro caliper carrier — no spacers, no adapter brackets — so track prep is a standard brake job, not a specialty install requiring a performance shop. Follow our bedding procedure before your first hard drive on the new setup to establish proper pad transfer.

Enthusiast Ownership Means More Brake Wear Per Mile

Enthusiast-driven S4s and RS5s tend to see more brake wear per mile than an average commuter sedan, which makes a matched, long-life rotor and pad system a better long-term value than repeatedly replacing worn OEM parts every time the factory setup hits its limits.

Confirm Fitment for Your S4 or RS5 Year

Audi made incremental caliper and hub changes across the B9 and B9.5 S4 generations, and the RS5 shares much of that architecture with its own variations. Confirm your exact production year on our fitment page before ordering to guarantee a direct bolt-on fit.

Compare and Research

Not sure Ghost Brakes is right for your S4 or RS5? Read our comparison guides: vs PowerStop Z36, vs Brembo, vs EBC Redstuff. Or explore our drilled and slotted rotors tech page for the engineering behind our rotor and pad design.

Frequently Asked Questions

What brake kit fits an Audi S4 / RS5?

Ghost Brakes offers G11H18 drilled and slotted rotors with carbon ceramic pads for the Audi S4 and RS5. Use our shop-by-car page or vehicle selector to confirm exact fitment for your model year and trim.

Do S4 and RS5 factory brakes fade on track days?

Yes. Factory G3000 rotors on the S4/RS5 are sized to a cost target, not to the platform’s real-world power. Repeated hard braking on track days or aggressive canyon driving causes pad fade and rotor warp well before OEM parts reach their rated mileage.

Are Ghost Brakes Audi S4 kits bolt-on?

Yes. Ghost Brakes S4/RS5 kits bolt directly onto factory quattro calipers — no modifications required. Includes rotors, pads, and hardware. Free shipping and lifetime warranty.

How do Ghost Brakes compare to OEM S4 brakes?

Ghost Brakes adds drilled and slotted rotor faces for heat evacuation, GEOMET corrosion coating, and carbon ceramic pads that hold consistent bite lap after lap instead of fading like OEM semi-metallic compounds.

Do S4/RS5 brake kits include pads?

Yes. Every Ghost Brakes S4/RS5 kit includes matched carbon ceramic brake pads engineered for our rotor face — not a separate purchase.

What is the warranty on Audi S4 Ghost Brakes kits?

Ghost Brakes provides a lifetime warranty on all rotors and pads with no mileage or time limits on manufacturing defects, even for track-driven cars. Free shipping on all orders.

Ready to upgrade your Audi S4 / RS5? Shop Audi S4 brake kits at Slyde Over. Free shipping. Lifetime warranty. Bolt-on install.

Audi S4 Brake Kit Shopping Checklist

Before you add a audi s4 brake kit to cart, confirm rotor diameter, hat height, and pad shape for your exact year and performance package. Optional packages (sport brakes, track packages, tow packages) can change front rotor size even when the model name on the window sticker looks the same. Use our Audi S4 shop-by-car page to filter live SKUs, or open the year-specific fitment link from that hub if you already know your trim.

Match rotors and pads as a set whenever possible. Fresh pads on worn or heat-checked rotors transfer uneven friction material and feel like "warp" within a few hundred miles. Ghost Brakes kits ship matched G11H18 rotors (or 2-piece fronts where offered) with carbon ceramic pads so thermal capacity and friction stay balanced axle to axle.

Compare tier choices in our 2-piece vs 1-piece rotor guide and read Ghost Brakes vs Brembo if you are deciding between dealer OEM replacements and a performance-minded upgrade that still bolts to factory calipers.

Install, Bedding, and When to Upgrade Audi S4 Brakes

Plan on a standard brake service timeline: clean hub faces, replace hardware where included, torque lugs to spec, and bed pads using the steps in our performance rotor break-in guide. Skipping bedding is the fastest way to get noise, dust, or a long pedal on otherwise good hardware — especially on heavier or AWD variants where the front axle does most of the work.

Upgrade when you feel fade on repeated hard stops, see blueing on factory rotors, or fight constant dust on expensive wheels. Maintenance intervals alone do not tell the whole story for enthusiast driving. When you are ready to order, browse the full brake kit catalog or return to the Audi S4 hub for model-filtered kits.

Rotor slot and coating engineering is documented on Ghost Brakes technology pages — Slyde Over handles checkout, tracking, and warranty registration for every complete kit.