The Brembo GT big brake kit for 2014–2020 Audi A3 front applications pairs four-piston calipers with 345 x 30 mm one-piece cast rotors. This front BBK is supplied with drilled rotors and a yellow finish, offered as a vehicle-specific upgrade to replace factory front hardware. The package focuses on larger-caliper and rotor sizing for direct fitment to the listed A3 models.
Brembo 14-20 A3 Front GT BBK 4 Piston Cast 345x30 1pc Rotor Drilled-Yellow