Choose options
Enhance rear braking performance on your Audi S4, S5, or SQ5 B9 / B9.5 with Paragon 2-Piece Rear Rotors. Designed for serious track and street use, these 330mm x 22mm lightweight rotors improve heat dissipation, reduce fade, and cut unsprung weight — all with direct bolt-on fitment and full OEM system compatibility.
Overview
These rotors use directional ventilation vanes to guide airflow through the core, reducing temperatures by up to 30% under load. The floating 2-piece design accommodates thermal expansion without warping, keeping the rotor centred with the pads and delivering consistent bite under repeated hard braking. Slotted surfaces clear debris and water, improving wet-weather braking stability.
Key Features
- 330 x 22mm slotted rear rotors with directional cooling vanes
- Up to 30% improved cooling vs OEM – reduced fade and heat soak
- Floating 2-piece design allows expansion while maintaining alignment
- CM-250 high-carbon alloy cast iron rotor rings – stress-relieved and CBN-machined
- Run-out ≤ 0.03mm; balance variation ≤ 2 grams
- Slotted face improves pad bite and water evacuation
- Rotor-to-hat mount: D-Bobbin (Short) – 10-bolt system
- Each rotor weighs 5.49 kg – saves 2.06 kg per side vs OEM
Construction
Rotor hats are CNC-machined from aerospace-grade 6061-T6 aluminium and MIL-A-8625 Type III hard anodised for strength and corrosion protection. Weight is minimised by removing unnecessary material, ensuring strength without excess mass.
Finish Options
- Clear Hard Anodised: Won’t discolour under track heat – ideal for motorsport
- Black Dyed Hardcoat: May discolour above 260°C – recommended for street use
Vehicle Fitment
- Audi S4 B9 / B9.5
- Audi S5 B9 / B9.5
- Audi SQ5 B9 / B9.5
- Model Years: 2018+
Fitment Notes
- Direct bolt-on installation – no modifications required
- Maintains OEM ABS and brake bias
- Compatible with OEM or aftermarket pads (same pad depth)
Technical Specifications
Diameter: 330mm (12.99")
Thickness (new): 22mm (0.87")
Thickness (min.): 20mm (0.79")
Type: 2-piece floating
Face Pattern: Slotted
Vented / Solid: Directional ventilated
Number of Vanes: 48
Hat Material: 6061-T6 aluminum
Friction Ring Material: CM-250 high carbon alloy cast iron
Rotor Finish: CBN turned
Weight (per rotor): 12.1 lbs (5.49 kg)
Cross Reference:
OEM Audi 8W0615601E
Brembo 09.B969.11
Centric/StopTech 125.33137
EBC PD03KR924
Contents
One pair of Paragon Performance 330mm x 22mm 2-piece rotor assemblies.
Hat Material: Black hard coat/hard anodized 6061-T6 aerospace-grade aluminum.
Bobbins: Stainless steel.
Anti-Rattle Clips: Included.
Assembly: Fully assembled and ready to install.
Included: Detailed installation manual.
No instructions available for this product.

Need Help Finding the Right Part?
We’ll Track It Down for You
We know how frustrating it can be searching for the right part. If it’s not listed on our site, that doesn’t mean we can’t source it.
Fill out the quick form below and our team will track it down for you.