The Brembo GT front big brake kit for 2019+ BMW Z4 and 2020+ Toyota Supra combines six-piston cast calipers with 380×34 mm two-piece drilled rotors in black. The listing names front-axle fitment for those Z4 and Supra model years and specifies the six-piston calipers and two-piece drilled rotor construction plus the black finish as included hardware details.
Brembo 19+ Z4 /20+ Supra Front GT BBK 6 Piston Cast 380x34 2pc Rotor Drilled-Black