Paragon Track Performance Big Brake Kit - Rear - BMW M3 G80 and BMW M4 G82 G83
Upgrade the rear brakes on your BMW M3 G80 or BMW M4 G82 G83 with the Paragon Track Performance Big Brake Kit featuring PA025 4 piston calipers. This rear big brake kit is engineered for serious track day performance while remaining highly capable on the road. It delivers stronger and more consistent braking, outstanding heat management, and confidence-inspiring pedal feel lap after lap.
Part Number: PARAGON-PBK.04.148.355.320.TL.01.02.Px.R
Why choose this rear BBK for your BMW G80 G82 G83
If you are searching for a BMW M3 G80 rear big brake kit or BMW M4 G82 G83 rear brake upgrade that offers track-proven performance, the Paragon PA025 4 piston kit is the perfect choice. With fully floating 2-piece rotors and 48 directional ventilation vanes, this brake kit runs up to 30% cooler than OE rotors, helping to resist brake fade on hard track sessions. Hard anodised calipers and rotor hats ensure durability and a premium finish under extreme heat. Piston sizes are optimised to work flawlessly with the OEM ABS and brake master cylinder, so you get powerful bite, excellent modulation and stability without upsetting factory systems.
Key features
- Paragon PA025 4 piston rear calipers for the BMW G80 M3 and G82 G83 M4
- Fully floating 2-piece rotors with 48 directional ventilation vanes for optimal cooling
- Runs up to 30% cooler than OE rotors for reduced fade and improved consistency
- Hard anodised calipers and rotor hats for superior wear resistance and colour stability
- Piston sizes optimised per application to maintain OEM ABS and master cylinder integration
- Confident bite, superb modulation, thermal stability and durability during extended track sessions
- Recommended usage: Street and Track
- Complete, pre-assembled rear axle set with everything required for the upgrade
- Important: Eliminates OEM E-brake and parking brake function
Fitment
Compatibility:
- BMW M3 G80 - Rear
- BMW M4 G82 G83 - Rear
- Model years 2021 onwards
What enthusiasts say
We have used this Paragon rear BBK ourselves and our customers have been extremely happy with the results. Expect a stronger, more consistent rear brake feel, improved balance with track pads, and reliable performance session after session. Ideal for fast road and track day cars seeking a serious BMW G8X rear brake upgrade.
Compatibility check
We will verify fitment before dispatch. Provide your UK registration number or the last 7 digits of your VIN at checkout for a quick compatibility check.
Professional fitting
Prefer expert installation for your BMW M3 G80 or BMW M4 G82 G83 rear brake upgrade We offer professional fitting at Nforcd in Warwickshire. Request a quote: Sales@nforcd.com.
Manufacturer
Paragon
Search-friendly terms
BMW M3 G80 rear big brake kit, BMW M4 G82 rear big brake kit, BMW M4 G83 rear big brake kit, G8X rear BBK, Paragon PA025 4 piston rear calipers, performance brake kit, track day brake upgrade, fully floating 2-piece rotors, directional vanes, rear brake conversion, BMW G80 G82 G83 rear brakes, performance rear brake kit for BMW M3 M4, Paragon big brake kit rear.


