The Brembo rear GT big brake kit for 2019–present BMW 330i is a rear-axle upgrade featuring four-piston cast calipers paired with 380×28 mm two-piece rotors. This option specifies slotted Type 3 rotors finished in yellow and includes the rotor and caliper assemblies sized for rear replacement, offered to match the 330i application listed in the description.
Brembo 19+ 330i Rear GT BBK 4 Piston Cast 380x28 2pc Rotor Slotted Type3-Yellow