Audi RS4 B9 2.9 V6 Turbo Avant (OPF/GPF Models) 2019 2023 Hi-Flow Sports Cats With HJS 200 Cell Cat and OPF/GPF Bypass
| Vehicle | Chassis | Years | Engine |
|---|---|---|---|
| AudiRS4Milltek structured application; Hi-Flow Sports Cats; With HJS 200 Cell Cat and OPF/GPF Bypass (Requires stage 2 ECU remap) | B9 | 2019–2027 | B9 2.9 V6 Turbo Avant (OPF/GPF Models) |
| AudiRS5Milltek structured application; Hi-Flow Sports Cats; With HJS 200 Cell Cat and OPF/GPF Bypass (Requires stage 2 ECU remap) | B9 | 2019–2027 | B9 2.9 V6 Turbo Coupe (OPF/GPF Models) |
| AudiRS5Milltek structured application; Hi-Flow Sports Cats; With HJS 200 Cell Cat and OPF/GPF Bypass (Requires stage 2 ECU remap) | B9 | 2019–2027 | B9 2.9 V6 Turbo Sportback (OPF/GPF Models) |