The Brembo GT front big brake kit for 2014–2020 Audi A3 pairs four-piston cast calipers with a 345×30 mm one-piece slotted Type 3 rotor in fluorescent yellow. Supplied for that application, the kit increases braking consistency and rotor cooling compared with many OE setups. It’s a color-coded, application-specific front upgrade for owners who want a noticeable, functional improvement in stopping performance.
Brembo 14-20 A3 Front GT BBK 4 Piston Cast 345x30 1pc Rotor Slotted Type3-Fluo. Yellow