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The Brembo rear GT big brake kit for 2009–2015 CTS‑V applications pairs a four‑piston cast caliper with a 380×28 mm two‑piece drilled rotor in silver. Packaged as a rear braking upgrade, the assembly supplies larger caliper hardware and a two‑piece drilled rotor layout specifically configured for CTS‑V rear fitment, finished in silver for a coordinated look.
Brembo 09-15 CTS-V Rear GT BBK 4 Piston Cast 380x28 2pc Rotor Drilled-Silver
