Cat-back Exhaust Milltek Audi S8 D4 4.0 TFSI 2013-2018 - with primary muffler, non-resonated - Quad GT100 Polished Tips

Milltek Sport Exhaust System for Audi S8 D4

On the Audi S8 D4, the factory exhaust is designed for quiet operation and regulatory compliance. This Milltek Sport stainless steel exhaust system restores the engine's voice with a refined, full, deep sound, the kind that built the reputation of this British brand.

Technical specifications

• Milltek part number: SSXAU466
• Part type: Exhaust system
• Configuration: resonated (with resonator), with valves
• Details: With primary and resonator mufflers, quad GT100 titanium exhaust tips
• Pipe diameter: 70 mm (2.75 in)
• Outlets: 4 GT100 exhaust tips, 100 mm
• Tip finish: titanium finish
• Fitting information: With valves
• Material: aerospace-grade stainless steel
• Manufacturer: Milltek Sport (UK)

Compatible vehicles

• Audi S8 D4 4.0 TFSI (Tiptonic, Quattro, 2013-2018)

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

Our most frequently asked questions

• Highway drone? It is the number one concern on forums. This version keeps a resonator: the sound stays full under acceleration, while the system stays unobtrusive at steady speed, ideal for everyday driving.
• What about the neighbors in the morning? The valves are controlled as on the factory system: closed and discreet on start-up or in comfort mode, fully open in sport mode.
• Installation: the system uses the original mounting points. A workshop with the right equipment typically fits it in one to two hours.

Why choose Milltek Sport?

What users mention most often: fit quality and a deep sound that is present but never harsh. This is the signature of Milltek Sport, a British manufacturer specialized in stainless steel exhausts.

Going further

• Resonated or non-resonated cat-back exhaust: which one for your car?
• Exhaust system with valves: how it works and should you keep them?