PowerStop Z23 Evolution Geomet Coated Rotor Brake Kit for 2004–2009 Audi S4 rear applications supplies rotors, Carbon-Fiber Ceramic Z23 pads and stainless-steel hardware for an affordable upgrade. Pads use a low-dust carbon-fiber ceramic compound and multi-layer rubberized shims to reduce noise; rotors are fully Genuine GEOMET 360 coated to fight corrosion while meeting original equipment specifications for fit and stopping consistency.
Power Stop 04-09 Audi S4 Rear Z23 Evolution Sport Coated Brake Kit