Kits matched to your Audi

Audi S4 Limousine B9(8W) Big Brake Kits

  • 2018–2024

45 kits matched to this car · All Audi models

Fitment notes: Recommended rotor size by kit: 10N Ø420 × 40 mm (at least 21-inch wheels); 21Z Ø410 × 32 mm (at least 21-inch wheels); 5440 Ø330 × 28 mm (at least 17-inch wheels); 8657S Ø355 × 32 mm (at least 18-inch wheels); 8N Ø380 × 36 mm (at least 19-inch wheels); 9N Ø400 × 38 mm (at least 20-inch wheels); CP8520 Ø390 × 36 mm (at least 20-inch wheels); CP8560 Ø380 × 28 mm (at least 19-inch wheels); CP9040 Ø355 × 32 mm (at least 18-inch wheels); CP9540 Ø380 × 32 mm (at least 19-inch wheels); CP9561 Ø380 × 36 mm (at least 19-inch wheels); CTS-V Ø380 × 28 mm (at least 19-inch wheels); CTS-V Ø380 × 34 mm (at least 19-inch wheels); EB10 Ø420 × 40 mm (at least 21-inch wheels); EB4 Ø380 × 32 mm (at least 19-inch wheels); EB6 Ø380 × 36 mm (at least 19-inch wheels); EB8 Ø405 × 34 mm (at least 21-inch wheels); EC670 Ø380 × 34 mm (at least 19-inch wheels); EC690 Ø380 × 34 mm (at least 19-inch wheels); EMB6 Ø380 × 34 mm (at least 19-inch wheels); EP4S Ø380 × 28 mm (at least 19-inch wheels); ES4 Ø380 × 28 mm (at least 19-inch wheels); ES6 Ø355 × 32 mm (at least 18-inch wheels); FA-022 Ø355 × 32 mm (at least 18-inch wheels); FA-032 Ø355 × 28 mm (at least 18-inch wheels); FA-042 Ø380 × 34 mm (at least 19-inch wheels); GT-BM4 Ø380 × 28 mm (at least 19-inch wheels); GT-BM6 Ø380 × 34 mm (at least 19-inch wheels); GT-M4 Ø380 × 28 mm (at least 19-inch wheels); GT-M6 Ø380 × 34 mm (at least 19-inch wheels); GT-R4 Ø380 × 28 mm (at least 19-inch wheels); GT-R6 Ø380 × 34 mm (at least 19-inch wheels); GT-S4 Ø380 × 28 mm (at least 19-inch wheels); GT-S6 Ø380 × 34 mm (at least 19-inch wheels); GT350 Ø380 × 36 mm (at least 19-inch wheels); PISTA-FF6 Ø380 × 32 mm (at least 19-inch wheels); RC4 Ø380 × 28 mm (at least 19-inch wheels); RC6 Ø380 × 36 mm (at least 19-inch wheels); SL6 Ø355 × 28 mm (at least 18-inch wheels).
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Picking brakes for the Audi S4

Kits are matched to both axles of the Audi S4 (B9, 2018–2024). Front calipers from AP Racing, Akebono, Alcon, Brembo, Endless and TTSPORT have 4, 6, 8 or 10 pistons, and we recommend 330–420 mm front rotors. Rear kits use 4-piston calipers from AP Racing, Alcon, Brembo or TTSPORT with 380–410 mm rotors.

  • Front: at least 17-inch wheels with the recommended rotor, though most kits need 19 inches or more, up to 21.
  • Rear: 19 to 21 inches with the recommended rotor.

Spoke shape and offset also affect clearance, so send your wheel details if unsure. Every kit mounts on brackets made for the S4. Some use genuine Audi calipers, made by Akebono at the front and by Brembo at the rear, and others use genuine Cadillac calipers made by Brembo. Rotors come in carbon ceramic or high-carbon steel. Most kits are street kits, and track kits are listed for both axles.

Common questions — Audi S4 Limousine B9(8W)

What wheel size do I need for a brake kit on the Audi S4?
Assuming the rotor we recommend for this car, front kits need at least 17-inch wheels, but most need 19 inches or more, up to 21. Rear kits need 19 to 21 inches. Send your wheel details if unsure.
Can I get carbon ceramic rotors on my S4?
Yes. Front and rear kits for this car are offered with carbon ceramic or high-carbon steel rotors. We recommend 330–420 mm front rotors and 380–410 mm rear rotors.
Which S4 kits use genuine Audi calipers?
Some front kits use genuine Audi calipers made by Akebono, and some rear kits use genuine Audi calipers made by Brembo. Genuine Cadillac calipers made by Brembo are offered on both axles. All kits mount on brackets made for this car.
Are there track kits for the S4?
Yes. Most front and rear kits are street kits, but track kits are listed for both axles. Kits are built to order and ship in about 15 business days.

Not sure what fits?

Send us your car and wheels. We'll tell you what fits.

Year, make, model, wheel size, and whether it's for the street or the track. We reply by email within one business day.

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