Turbo Downpipe 80mm Milltek Audi RS6 C8, RS7 C8, S8 D5 - 80 mm with HJS Highflow 200 CPSI catalytic converters - for original li

Milltek Sport downpipe with high-flow catalytic converter for Audi RS6 C8 / RS7 C8 / S8 D5

This Milltek Sport downpipe with high-flow catalytic converter for Audi RS6 C8 / RS7 C8 / S8 D5 opens up the exhaust right after the turbo while keeping a high-flow sport catalyst: the best compromise between performance and emissions control.

Technical specifications

• Milltek part number: SSXAU869
• Part type: Downpipe with high-flow catalytic converter
• Detail: Large 80 mm diameter downpipe with HJS Highflow 200 CPSI catalytic converters + DPF bypass
• Tube diameter: 80 mm
• Fitting information: With heat shields, OE line fitment, ECU remap
• Material: aerospace-grade stainless steel
• Manufacturer: Milltek Sport (UK)

Compatible vehicles

• Audi RS6 C8 4.0 V8 twin-turbo (2019-2025, with DPF)
• Audi RS7 C8 4.0 V8 twin-turbo (2019-2025, with DPF)
• Audi S8 D5 4.0 TFSI 571 hp (Sedan, 2020-2025, with DPF)

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

Our most frequently asked questions

• Does it need an ECU remap? Yes. A suitable Stage 2 map is essential to get the gain and avoid an engine warning light linked to the lambda sensors. It is the question buyers ask most, and the answer is always the same.
• 200-cell high-flow catalytic converter: it retains real emissions control while flowing much more than the original. It is the choice of tuners who want to keep a vehicle clean.
• Line compatibility: this downpipe connects to the original exhaust line.

Why choose Milltek Sport?

What comes up most often in user feedback: fit quality and a deep sound, present but never harsh. That is the signature of Milltek Sport, a British maker specializing in stainless steel exhausts.

Going further

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