The Brembo Rear GT big brake kit for Audi S5 (2008–2017) and S4 (2009–2016) rear applications pairs a four-piston cast caliper with a 380×28 mm two-piece drilled rotor in black. This rear-specific kit offers direct-fit replacement for the listed models and uses two-piece drilled rotors to improve thermal control and pad engagement consistency during demanding stops while preserving factory mounting.
Brembo 08-17 S5/09-16 S4 Rear GT BBK 4 Piston Cast 380x28 2pc Rotor Drilled-Black