





Paragon 4-Piston Track Performance Big Brake Kit – Rear for BMW M3 (G80) / M4 (G82/G83)
Need it sooner? Contact us and we’ll see what we can do.
Choose options
Need it sooner? Contact us and we’ll see what we can do.
Need it sooner? Contact us and we’ll see what we can do.
This complete, track-ready big brake kit is engineered for the BMW M3 (G80) and M4 (G82 / G83), delivering maximum rear braking performance for track day enthusiasts and serious drivers. Featuring Paragon’s PA025 4 piston calipers and fully-floating 2-piece rotors, the kit is designed to withstand extreme thermal loads while maintaining consistent braking control lap after lap.
Key Features:
-
Paragon PA025 4 piston calipers
-
Fully-floating 2-piece rotors with 48 directional ventilation vanes – runs up to 30% cooler than OEM
-
Calipers available in hard anodized or ENP electroless nickel plated finishes
-
Hard anodized rotor hats – superior resistance to heat, wear, and discoloration
-
Piston sizes optimized for G8X platforms – fully compatible with OEM ABS and master cylinder
-
Delivers strong bite, consistent heat resistance, and precise pedal modulation
-
Designed for both high-performance street driving and aggressive track use
-
Complete pre-assembled rear axle kit – bolt-on installation
-
Note: This kit eliminates the OEM electronic parking brake (E-brake) function
Pad Shape

Contents
One pair of Paragon PA025 4-piston calipers
One pair of Paragon 48-vane fully-floating 2-piece rotor assemblies
Hard anodized 6061-T6 aerospace grade aluminum hats
Stainless steel bobbins and anti-rattle clips
One set of Paragon P3 “Street/Track” semi-metallic brake pads
Manufactured by Winmax Japan
Other compounds available at additional cost
One pair of caliper mounting brackets with all necessary hardware
One pair of Goodridge DOT-approved stainless steel braided brake lines
One set of caliper anti-rattle clips
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.