Milltek Exhaust – Audi RS6 C8 4.0 V8 bi-turbo (OPF/GPF Models) Optional Carbon Fibre Trims SSXAU1034 $1,018.00 Edit All available Milltek Exhaust – Audi RS6 C8 4.0 V8 bi-turbo (OPF/GPF Models) Optional Carbon Fibre Trims SSXAU1034 are in your cart. Total $1,018.00 Remove