The Brembo Rear GT big brake kit for 2006–2011 ML320 applications includes a four‑piston rear caliper and a two‑piece 380×28 mm cast rotor with drilled face in a black finish. Identified as a rear GT BBK, the description lists rotor diameter, thickness and two‑piece construction to supply the rear braking configuration named for the ML320 model years indicated.
Brembo 06-11 ML320 Rear GT BBK 4 Piston Cast 380x28 2pc Rotor Drilled-Black