The Brembo rear GT big brake kit for 2008–2017 S5 and 2009–2016 S4 applications equips the rear axle with four-piston calipers and 380x28 two-piece slotted rotors in a silver Type1 finish. This rear upgrade improves heat management and braking consistency, offering replaceable two-piece rotors and stout calipers to enhance stopping under heavier loads and spirited driving on supported S4/S5 models.
Brembo 08-17 S5/09-16 S4 Rear GT BBK 4 Piston Cast 380x28 2pc Rotor Slotted Type1-Silver