Milltek Sport (Audi, RS4 B9 2.9 V6 Turbo Avant, OPF/GPF) Hi-Flow Sports Cats

Milltek Sport's high-flow sports catalytic converters for the Audi RS4 (B9) 2.9 V6 Turbo Avant, OPF/GPF Models replace the restrictive factory units with genuinely higher cell-count metal substrate cats, delivering improved flow while retaining meaningful emissions control, unlike a full de-cat pipe. Constructed from T-304 stainless steel throughout for long-term durability.

Compatibility

• Audi RS4 (B9) 2.9 V6 Turbo Avant, OPF/GPF Models