The Brembo Big Brake Kit for 2006–2008 Audi RS4 rear applications pairs four-piston billet calipers with 380×28 mm two-piece slotted Type 3 rotors and nickel plating. Offered as a direct rear replacement, the slotted rotors enhance pad cleaning and cooling while the multi-piston caliper provides firmer rear braking modulation compared with standard components, matched to original rear mounting points.
Brembo 06-08 RS4 Rear GTR BBK 4 Piston Billet380x28 2pc Rotor Slotted Type-3- Nickel Plated