The Brembo rear big brake kit for 2008–2014 WRX STI applications includes four-piston billet calipers and two-piece 345×28 mm drilled rotors with nickel plating. As a rear upgrade, it matches billet calipers to ventilated two-piece rotors drilled to aid heat and gas dissipation, offering a larger-capacity rear braking package and a plated rotor finish for corrosion resistance.
Brembo 08-14 WRX STI Rear GTR BBK 4 Piston Billet 345x28 2pc Rotor Drilled- Nickel