DPF Back Milltek Audi RS4 B9 2019-2025, ECE Homologated, with primary muffler, resonated, Oval Titanium Outlets

Milltek Sport DPF-Back Exhaust for Audi RS4 B9

Does the original sound of your Audi RS4 B9 leave you wanting more? This Milltek Sport stainless steel DPF-back exhaust is the most requested upgrade among owners: more presence, a true sound signature and long-lasting build quality.

Technical specifications

• Milltek part number: SSXAU823
• Part type: DPF-back exhaust
• Configuration: resonated (with resonator), with valves
• Details: ECE approved - With primary muffler and resonator - Oval titanium tips
• Tube diameter: 70 mm (2.75 in)
• Outlets: 170 X 107mm oval outlet
• Tip finish: titanium finish
• Installation information: ECE version - With valves
• Material: aerospace-grade stainless steel
• Homologation: ECE / EC homologated
• Manufacturer: Milltek Sport (UK)

Compatible vehicles

• Audi RS4 B9 2.9 V6 T (Wagon, 2019-2025, with DPF)

Not sure about compatibility with your vehicle? Contact us with your VIN (chassis number) before ordering.

Frequently asked questions

• Highway drone? This is the number one concern on forums. This version keeps a resonator: the sound stays full under acceleration, while the exhaust stays unobtrusive at steady cruising speed, ideal for everyday driving.
• And the neighbors in the morning? The valves are controlled as on the original: exhaust closed and quiet on startup or in comfort mode, fully open in sport mode.
• Homologation: this exhaust is ECE / EC homologated, a real plus for driving with peace of mind and passing the technical inspection.
• Installation: the exhaust uses the original mounting points. A workshop with the right equipment typically fits it in one to two hours.

Why choose Milltek Sport?

Milltek Sport designs and manufactures its exhausts in England, with mandrel-bent tubing to preserve the internal diameter and a fit developed on the vehicle. The result: a clean installation without modifications, and a sound tuned to stay pleasant for everyday use.

Going further

• Resonated or non-resonated cat-back exhaust: which one is right for your car?
• Valved exhaust: how does it work and should you keep the valves?
• Exhaust system and technical inspection in France