The Brembo big brake kit for 1997–2004 Porsche Boxster S (986) rear applications fits four-piston billet calipers with 345x28mm two-piece slotted Type-1 nickel rotors. This rear GTR BBK uses slotted rotor geometry to aid pad bite and nickel plating for corrosion resistance. It’s supplied as a direct replacement to improve rear braking consistency while preserving rotor serviceability.
Brembo 97-04 986 Boxster S Rear GTR BBK 4 Piston Billet 345x28 2pc Rotor Slotted Type1 - Nickel