Downpipe 76mm Milltek Audi S8 D4 4.0 TFSI 2013-2018, 76 mm with high-flow catalytic converters

Milltek Sport High-Flow Cat Downpipe for Audi S8 D4

This Milltek Sport high-flow cat downpipe for Audi S8 D4 frees up exhaust flow right after the turbo while retaining a high-flow sport catalytic converter: the best compromise between performance and emissions control.

Technical specifications

• Milltek part number: SSXAU953
• Part type: High-flow cat downpipe
• Detail: 76 mm large-diameter downpipe with Highflow catalytic converters
• Tube diameter: 70 mm (2.75 inches)
• Fitting information: Designed to connect to a Milltek line, ECU remap required
• Material: aerospace-grade stainless steel
• Manufacturer: Milltek Sport (United Kingdom)

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.

Most frequently asked questions

• Is an ECU remap required? Yes. A suitable Stage 2 map is essential to get the full benefit and avoid a check engine light related to the lambda sensors. It is the most frequently asked question from buyers, and the answer is always the same.
• 200-cell high-flow cat: it retains real emissions control while allowing much more flow than the original. It is the choice of tuners who want to keep a vehicle clean.
• Line compatibility: this downpipe is designed to connect to a Milltek line. Check the version suited to your application if you keep the original line.

Why choose Milltek Sport?

What comes up most often in user feedback: fit quality and a deep tone, present but never harsh. This is the hallmark of Milltek Sport, a British manufacturer specializing in stainless steel exhausts.

Going further

• Downpipe: decat or high-flow cat for your Stage 2?