About Alcon Brakes

For over 30 years, Alcon has been at the forefront of high-performance motorsport braking. Engineered in the UK to the highest tolerances, Alcon brake systems deliver uncompromising stopping power, pedal consistency, and durability under extreme stress.

BMW 3-Series (E46) Fitment Guide

The E46 chassis is widely celebrated as one of the most balanced driver's cars ever built. However, whether you are running a fast-road M3, a dedicated track car, or a boosted build, modern grip levels quickly expose the thermal limits of the factory brakes. These Alcon Big Brake Kits shed unsprung weight while massively increasing thermal capacity, ensuring fade-free performance lap after lap.

Confirmed Fitment:

• BMW 3-Series E46 (Inc. M3)

Performance Tiers:

• Street Performance (CAR97 / CAR99): Engineered for spirited daily driving. These calipers feature standard dust boots to protect against road grime. Note: CAR97 is strictly engineered for 32mm rotor configurations.
• Street/Track Performance (Car49 TA4+ / CAR89 TA6 / CAR89 ENP): The ultimate hybrid setup. The nimble Car49 TA4+ is perfect for lightweight 343mm setups, while the CAR89 variants handle larger 355mm+ rotors. The ENP version features a premium Electroless Nickel Plating for superior heat radiation.
• Track Performance (CRB343 / CR6380 / CAR89): Dedicated motorsport braking without dust boots. Strictly for competition use to ensure maximum clamping force without fade. Note: CR6380 is exclusively compatible with 355x32mm and 380x32mm rotors, while the CRB343 is optimized for 343mm setups.
• Endurance Track (CR6420 / CAR89 Billet): Purpose-built for multi-hour racing events. Note: Endurance kits are strictly paired with high-mass 34mm and 36mm thick rotors to guarantee maximum heat capacity during long stints.

*Important Note on Wheel Clearance: Upgrading to an Alcon Big Brake Kit will significantly alter your wheel clearance requirements. Please ensure you check the Alcon wheel clearance templates against your current wheel offset before purchasing.