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Not sure which one? Ask us to confirm fitment first →For UK customers, prices include VAT, customs and delivery unless checkout states otherwise. Outside the UK, shipping is shown at checkout and local customs and taxes remain your responsibility.
Some products are made to order, imported or custom built. If timing matters, contact us before ordering and we will confirm the expected delivery timeframe.
We confirm build spec, lead time and delivery arrangements with you before any money moves. Prefer to talk it through first?
| Specification | Details |
|---|---|
| Brand | Milltek Sport |
| System | Cat-back exhaust |
| Application | Audi RS4 B9 2.9 V6 Turbo Avant, 2018+, non-OPF/GPF models |
| Main pipe diameter | 70 mm |
| Main pipework material | 304L stainless steel |
| Configuration | See the complete option table |
| E-mark approval | Varies by SKU; see option table |
A more enjoyable exhaust note for your everyday RS4.
Practical when you need it and properly entertaining when you want it: that is the appeal of an RS4 Avant. This Milltek cat-back adds a more involving V6 soundtrack to the 2018+ non-GPF B9, with Resonated and Road+ configurations and four oval tip finishes. You can choose the amount of silencing and the appearance as separate decisions.
Resonated is our starting point for an Avant used on long trips. It keeps front and centre silencers ahead of the valved rears. Road+ uses the same rear silencer type without the front and centre silencers, for a less silenced setup. Polished, black, titanium and burnt titanium finishes then let you keep the rear subtle or make the outlets stand out.
Each row is one complete system. Select the matching option and part number when ordering.
| Version | SKU | Price | E-mark approval |
|---|---|---|---|
| Resonated / Polished Oval | SSXAU749 | GBP 3,290.20 | Yes |
| Resonated / Cerakote Black Oval | SSXAU750 | GBP 3,416.10 | Yes |
| Resonated / Titanium Oval | SSXAU805 | GBP 3,594.52 | Yes |
| Resonated / Burnt Titanium Oval | SSXAU806 | GBP 3,680.44 | Yes |
| Road+ / Polished Oval | SSXAU759 | GBP 2,837.92 | No |
| Road+ / Cerakote Black Oval | SSXAU760 | GBP 2,963.82 | No |
| Road+ / Titanium Oval | SSXAU807 | GBP 3,142.24 | No |
| Road+ / Burnt Titanium Oval | SSXAU808 | GBP 3,228.16 | No |
Lower connecting pipes, the selected silencer arrangement, left and right valved rear silencers, oval trims and fitting kit. Resonated versions include front and centre silencers; Road+ versions include front and centre silencer-delete pipes.
Audi RS4 B9 2.9 V6 Turbo Avant, 2018+, non-OPF/GPF models
This is the non-GPF RS4 system. The GPF-equipped Avant uses a different kit. Allow approximately 2-2.5 hours for fitting, including removal of the original exhaust. A professional installation gives the pipework, tip alignment and hot clearances the attention they need. The system should be checked again after its first heat cycle.
For a GPF-equipped RS4 B9 Avant, use our GPF-equipped RS4 system.
Clean the tailpipes regularly once they are cool, so road dirt and deposits do not become a bigger job later. Use a cleaning product suitable for your chosen tailpipe finish.
For UK customers, prices include VAT, customs and delivery unless checkout states otherwise. For customers outside the UK, local customs and taxes remain your responsibility, and shipping is shown at checkout. If a shipping option is not available, email us and we will prepare a tailored quote.
Many of the products we sell are made to order, imported or custom built, so a lead time may apply. If you need a part urgently, contact us before ordering and we will confirm the expected delivery timeframe and process.
We would choose Resonated for frequent cruising. It has front and centre silencers as well as the valved rear silencers. Road+ retains the same rear-silencer type but omits the front and centre silencers.
No. This is the non-OPF/GPF application. A car with factory particulate filters needs the matching GPF-equipped system.
No remap is required for this cat-back change with the rest of the exhaust in its standard configuration. Different requirements can apply if you also change downpipes or catalysts.
The silencer and pipe configuration determine the sound. Pick the finish for the look you want: changing the decorative tips within the same system layout is an appearance choice.
Milltek covers parts containing valves for 2 years or 80,000 km and electronic products for 2 years. Other qualifying parts in this system have lifetime cover. Cover is for the original purchaser and excludes fitting labour and failures caused by misuse or unauthorised modification. Keep your invoice and contact us if you need help with a claim.
Model year, engine, drivetrain, hardware and existing modifications can all change what fits. Check the applications and supplier notes above, or send us your exact vehicle and setup before ordering.
Send us your vehicle, year, current setup and any fitting date, event, trip or deadline before ordering. We will help check fitment, product choice and timing.
