Audi B8 S4, S5 Front Rotors
Upgrade your Audi B8 S4 or S5 with Girodisc 2-piece floating rotors for reduced unsprung weight, improved cooling, and OEM-level fitment. These precision-engineered replacements bolt directly to your car without modifications, maintaining perfect compatibility with factory calipers, brake bias, and ABS. Each rotor sheds over 4 lbs compared to stock — 19.1 lbs versus 23.6 lbs — for faster suspension response and sharper acceleration.
These rotors also fit B8 A4, S4, and S5 models upgraded with the four-piston Brembo caliper from the Q5 3.0T, making them a versatile performance upgrade across the Audi platform. Whether you’re carving canyons or pushing hard on track, Girodisc delivers cooler, quieter, and more consistent braking.
Precision-Engineered Performance
Vehicle Fitment
- Audi B8 S4
- Audi B8 S5
- Audi B8 A4 / S4 / S5 with Q5 3.0T Brembo Caliper Upgrade
Features
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Direct OEM replacement: Bolts directly to stock calipers, no adapters or modifications required.
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Curved vane ventilation: Directional vanes act as a centrifugal pump, moving air through the disc for superior cooling.
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Floating mount system: Ten high-strength drive pins and anti-noise washers allow for heat expansion while maintaining quiet operation.
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Lightweight performance: Over 4 lbs lighter per rotor for improved steering feel and acceleration.
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U.S.-sourced materials: Machined from 6061-T6 aluminum and proprietary cast iron entirely in-house at Girodisc.
FAQs
Will these fit factory calipers? Yes, they’re designed for OEM S4/S5 brakes and also fit A4/S5 models upgraded with Q5 Brembos.
Are these rotors directional? Yes, each rotor features a curved vane pattern optimized for left/right installation.
Will they change brake bias? No, Girodisc rotors maintain OEM brake balance and ABS function.
Do they make noise? No, the anti-noise spring washers prevent rattling while preserving thermal float.
How are they sold? Sold and priced per pair.
Enhance your Audi’s braking with Girodisc floating rotors — lighter, stronger, and designed to perform flawlessly on both road and track.
