Audi A4 / S4 / RS4 HF-7 Audi A4 / S4 / RS4 Forged: M-X Series M-X3 (3-Piece) Audi A4 / S4 / RS4 Hybrid Forged Series HF-5 Audi Q8 / RSQ8 Hybrid Forged Series HF-5 Audi R8 Forged: ERA Series ERA-1 (3-Piece) Audi A7 / S7 / RS7 Hybrid Forged Series HF-7 Audi A6 / S6 / RS6 Hybrid Forged Series HF-4T Audi Q8 / RSQ8 Hybrid Forged Series HF-7 Audi A4 / S4 / RS4 Forged: M-R Series ML-R1 Audi A6 / S6 / RS6 Hybrid Forged Series HF-7 Audi R8 Hybrid Forged Series HF-5 Audi A6 / S6 / RS6 Urban Automotive x Vossen UV-X Audi A6 / S6 / RS6 Forged: Series 21 S21-01 Carbon Audi A6 / S6 / RS6 Hybrid Forged Series HF-7 Audi R8 Hybrid Forged Series HF-7 Audi A3 / S3 / RS3 Hybrid Forged Series HF-5 Audi Q8 / RSQ8 Hybrid Forged Series HF-5 Audi Q8 / RSQ8 Hybrid Forged Series HF-5 Audi Q8 / RSQ8 Hybrid Forged Series HF-5 Audi E-Tron Hybrid Forged Series HF-4T Audi A7 / S7 / RS7 Hybrid Forged Series HF-7 Audi A6 / S6 / RS6 Forged: Series 21 S21-01 Carbon Audi A6 / S6 / RS6 Hybrid Forged Series HF-2 Audi R8 Hybrid Forged Series HF-7