The Brembo GTS big-brake kit for 2004–2008 Audi S4 (B6/B7) front applications includes six-piston front calipers and 355×32 mm two-piece cast rotors finished black with slotted Type‑1 faces. Presented as a front brake kit, the components are sized to the S4 application to provide a direct-replacement upgrade that changes rotor design while retaining model-specific fitment.
Brembo 04-08 S4 (B6/B7) Front GTS BBK 6 Piston Cast 355x32 2pc Rotor Slotted Type-1-Black HA