The Brembo rear GT big brake kit for 2019–present 330i applications pairs a four-piston cast caliper with a 380 x 28 mm two-piece slotted rotor in red (Type 3). Specified for rear fitment on 330i models, the kit provides multi-piston caliper hardware and serviceable two-piece rotors as a vehicle-specific upgrade to the stock rear braking system.
Brembo 19+ 330i Rear GT BBK 4 Piston Cast 380x28 2pc Rotor Slotted Type3-Red