The Brembo rear GT big brake kit for 2005–2011 G55 and 2012–2018 G63/G65 AMG rear applications pairs four-piston calipers with 380×28 mm two-piece cast rotors fitted with slotted Type 1 faces and a red caliper finish. Supplied as a rear GT BBK configured for the listed AMG models, the kit includes two-piece slotted rotors and color-matched calipers for the specified fit.
Brembo 05-11 G55/12-18 G63/G65 AMG Rear GT BBK 4 Piston Cast 380x28 2pc Rotor Slotted Type1-Red