The Brembo GT big brake kit for 2015–2023 Ford Mustang (GT, V6, EcoBoost) rear applications pairs a four‑piston caliper with cast two‑piece 380 x 28 mm rotors finished in black and fitted with slotted Type3 faces. The description specifies a rear BBK configured for these Mustang models, listing caliper piston count, rotor size, two‑piece cast construction and slot pattern for shopper clarity.
Brembo 15-23 Mustang GT/V6/EcoBoost Rear GT BBK 4 Piston Cast 380x28 2pc Rotor Slotted Type3-Black