Milltek Cat-Back Exhaust Audi RS4 B9 2.9 V6 T 2018-2025 no DPF - no primary muffler, non-resonated - Dual Oval Titanium Tips

Milltek Sport Exhaust System for Audi RS4 B9

On the Audi RS4 B9, the factory system is engineered for quiet and regulatory compliance. This Milltek Sport stainless steel exhaust gives the engine its voice back with a refined, full, deep tone, the sound that built the reputation of the British brand.

Technical specifications

• Milltek part number: SSXAU807
• Part type: Exhaust system
• Configuration: non-resonated (no resonator), with valves
• Details: No primary muffler and no resonator, dual oval titanium outlets
• Tube diameter: 70 mm (2.75 in)
• Outlets: 2 oval outlets
• Tip finish: titanium finish
• Fitment information: Road+ version (ECE rear muffler) - With valves
• Material: aerospace-grade stainless steel
• Manufacturer: Milltek Sport (UK)

Compatible vehicles

• Audi RS4 B9 2.9 V6 T (Avant, 2018-2025, non-FAP)

Not sure about compatibility with your vehicle? Contact us with your VIN before ordering.

Frequently asked questions

• Resonated or non-resonated? This version is non-resonated (no resonator): it is the most expressive, with more crackle on lift-off. The trade-off is a slight drone that can appear at certain engine speeds on long trips. If you do a lot of highway driving, compare it with the resonated version.
• What about the neighbors in the morning? The valves are controlled as on the factory system: closed and quiet at startup or in comfort mode, fully open in sport mode.
• Installation: the system uses the original mounting points. A shop with the proper equipment typically fits it in one to two hours.

Why choose Milltek Sport?

A benchmark among European tuners, Milltek Sport tunes each of its systems directly on the vehicle. Mandrel bending, clean welds and aerospace-grade stainless steel ensure a system that lasts and sounds right.

Further reading

• Resonated or non-resonated cat-back exhaust: which one should you choose for your car?
• Exhaust valves: how they work and whether to keep them