The EBC BSD front rotor set for 2017–2020 Audi A4 B9 applications uses a V-slot pattern to improve heat dispersion and help brake pads run cooler compared with OE rotors. This vented front rotor fits FMSI pad D1897, measures 338mm diameter and 30mm thickness with five bolt holes. High-carbon, thermally stable construction and a silent vee-slot design add durability and a subtle performance look.
EBC 17-20 Audi A4 B9 BSD Front Rotors