The Brembo GT big brake kit for 2017–2020 Civic Si Sedan front pairs four‑piston cast calipers with two‑piece 345×28 mm rotors supplied as a front set. It includes slotted Type‑1 rotors in a red finish and is sized specifically for the listed Civic Si front application, providing a complete factory‑style replacement brake package for those years.
Brembo 17-20 Civic Si Sedan Front GT BBK 4 Piston Cast 345x28 2pc Rotor Slotted Type1-Red