Cat-back Milltek Audi S8 D4 4.0 TFSI 2013-2018 - With primary mufflers and non-resonated - Quad GT100 Cerakote Black tips

Milltek Sport exhaust system for Audi S8 D4

On the Audi S8 D4, the original exhaust is designed for quietness and regulations. This Milltek Sport stainless steel exhaust system brings back the engine's voice with a refined, full, deep sound, the one that built the reputation of this English brand.

Technical specifications

• Milltek part number: SSXAU469
• Type: Full exhaust system
• Configuration: non-resonated (no resonator), with exhaust valves
• Details: With primary mufflers and no resonator - quad GT100 tips in black Cerakote
• Tube diameter: 70 mm (2.75 in)
• Outlets: 4 GT100 tips of 100 mm
• Tip finish: black Cerakote (high-temperature ceramic)
• Installation details: 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 it fits your vehicle? Contact us with your VIN before ordering.

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 be heard 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 original system: closed and quiet at startup or in comfort mode, fully open in sport mode.
• Installation: the system uses the original mounting points. A repair shop with the right equipment usually fits it in one to two hours.

Why choose Milltek Sport?

Milltek Sport designs and manufactures its exhaust systems in England, using mandrel-bent tubing to preserve the inner diameter and a fit developed on the vehicle. The result: a clean installation with no modification, and a sound tuned to stay 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?