The Brembo GT big brake kit for 2009–2015 GLK rear applications pairs four-piston cast calipers with two-piece 345x28 mm slotted Type‑1 rotors in black. Designed for the listed GLK model years, the rear kit uses larger rotors and multi-piston calipers to improve pad engagement and thermal management for towing, daily driving or occasional spirited use.
Brembo 09-15 GLK Rear GT BBK 4 Piston Cast 2pc 345x28 2pc Rotor Slotted Type-1-Black