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

Milltek Sport Exhaust System for Audi RS4 B9

Replacing the factory exhaust with a Milltek Sport system brings back the character that the Audi RS4 B9 engine muffles as standard: a rounder sound at idle, which opens up clearly through the revs, without artifice.

Technical specifications

• Milltek part number: SSXAU759
• Part type: Exhaust system
• Configuration: non-resonated (no resonator), with exhaust valves
• Details: No primary muffler and no resonator, dual oval polished stainless steel tips
• Tube diameter: 70 mm (2.75 inches)
• Outlets: 2 oval tips
• Tip finish: polished stainless steel
• Fitting 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 (Wagon, 2018-2025, no DPF)

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

Our most 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. On the other hand, a slight drone may appear at certain engine speeds on long trips. If you drive a lot on the highway, compare it with the resonated version.
• What about the neighbors in the morning? The valves are controlled as on the factory system: the line stays closed and discreet at startup or in comfort mode, and fully opens in sport mode.
• Fitting: the system uses the factory mounting points. A properly equipped repair shop usually fits it in one to two hours.

Why choose Milltek Sport?

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

Further reading

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