Rear 380mm Floating Drilled Slotted Brake Disc Rotors PowerStop Track Day CBR6642-CBR6643

Rear Floating 2-Piece Drilled and Slotted Brake Disc Rotors PowerStop Track Day

Fits on:

- BMW M5 2018-2023
- BMW M8 2020-2025
- BMW M8 Gran Coupe 2020-2025

Note: Does not fit on cars factory equipped with ceramic brakes.

DIAMETER: 380mm x 28mm
OEM Part Number 34217991103 34217991104
PowerStop T-CBR6642XL T-CBR6643XR

SPECIFICATIONS:

Elite Track Engineering: A matched pair of ultra-premium, front-axle brake rotors precision-engineered by PowerStop’s elite Track Day division.

Advanced Thermal Dynamics: Hyper-precise cross-drilled and slotted architecture maximizes rapid heat dissipation, preventing fade under extreme thermal stress.

Silver GEOMET® 360 Armour: Fully treated with a pristine, proprietary plating that permanently shields the entire rotor against harsh GCC rust and oxidation.

Match-Grade Balancing: 100% dynamically mill-balanced to absolute competition-level tolerances, delivering flawless, vibration-free operation straight out of the box.

Uncompromised Deceleration: Architected exclusively to deliver whisper-quiet refinement, impeccable pedal feedback, and absolute, high-velocity stopping power.