StopTech BMW F80 F82 F83 M3 and M4 2-Piece Aero Front Brake Discs – Pair
Upgrade your BMW M3 or M4 braking performance with StopTech AeroRotor Replacement Kits. These premium 2-piece floating front brake discs are a direct fit for BMW F80 M3, F82 M4 and F83 M4, retaining OEM dimensions to work perfectly with factory calipers. Designed for fast road, spirited driving and track days, StopTech AeroRotors use advanced AeroVanes that push up to 80 percent more air than factory rotors for dramatically improved cooling and reduced brake fade.
If you want a serious braking upgrade without committing to a full big brake kit, these StopTech 2-piece front discs deliver. Better airflow for better cooling, reduced unsprung weight, consistent pedal feel and superb bite. Choose slotted or drilled faces, with optional zinc anti-corrosion coating for road salt protection and long-lasting good looks.
Why choose StopTech 2-piece AeroRotors for BMW F80 F82 F83 M3 and M4
- Direct replacement front brake discs for OEM fitment and stock calipers
- 2-piece floating construction helps reduce unsprung weight and resists coning
- AeroVanes increase internal airflow for superior heat dissipation and fade resistance
- Slotted or drilled options to maintain pad face cleanliness and improve initial bite
- Optional zinc coating to combat corrosion and keep the rotors looking fresh
- Retains original dimensions for easy installation and compatibility
We have fitted these StopTech ARK AeroRotors on customer M3 and M4 builds and the feedback is consistently excellent. Strong, predictable braking on road and track, better resistance to fade and cracking, and a noticeable step up over tired OEM rotors. A brilliant performance brake disc upgrade for BMW F80 M3 and BMW F82 F83 M4 owners.
Key search terms
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Features
- 2-piece rotors
- Retains original dimensions
- Higher quality than factory OEM
- AeroVanes for better cooling
- Available slotted or drilled
- Optional anti-corrosion zinc coating
What’s included
One pair of 2-piece front brake discs
Compatibility
BMW F80 M3, BMW F82 M4, BMW F83 M4
Not compatible with carbon brake system.
Part numbers
- 81.B38.9911 – Slotted Aero-Rotors (ARK)
- 81.B38.9921 – Drilled Aero-Rotors (ARK)
- 81.B38.9931 – Slotted Zinc Coated Aero-Rotors (ARK)
- 81.B38.9941 – Drilled Zinc Coated Aero-Rotors (ARK)
Manufactured by
StopTech
Warranty
6 months or 6,000 motorway miles. StopTech Warranty applies.
Dimensions
81-B38-9921 - 42cm x 42cm x 28cm
Weight
81-B38-9921 - 23.4kg
Fitting and installation
Professional installation recommended. For fitting and brake fluid or pad upgrades, book with Nforcd in Warwickshire. Request a fitting quote at Sales@nforcd.com.
Buy with confidence from Nforcd
We supply and fit performance brake upgrades for BMW M cars across the UK. These StopTech AeroRotor front discs are a proven, high quality, direct replacement upgrade for BMW F80 F82 F83 M3 and M4 models. Order your pair today for stronger bite, cooler running and consistent performance on the road and at the track.