Downpipe Milltek Audi A4 B9 2.0 TFSI 2016-2025 without DPF - Decat

Milltek Sport decat downpipe for Audi A4 B9

The downpipe is the first restriction on a tuned turbo engine. This Milltek Sport decat downpipe for Audi A4 B9 frees up the exhaust right after the turbo, for faster spool and a stronger boost build-up.

Technical specifications

• Milltek part number: SSXAU745
• Part type: Decat downpipe
• Details: Large diameter decat downpipe
• Material: aerospace-grade stainless steel
• Manufacturer: Milltek Sport (United Kingdom)

Compatible vehicles

• Audi A4 B9 2.0 TFSI (without chassis reinforcement bars, Quattro, Sedan - Avant, 2016-2025, without DPF)

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

Frequently asked questions

• Is a remap required? Yes. A suitable ECU map (Stage 2) is essential to get the gain and avoid an engine warning light linked to the lambda sensors. It is the most frequently asked question from buyers, and the answer is always the same.
• What about the French technical inspection? A decat downpipe does not pass the emissions inspection. This product is intended for motorsport use only.

Why choose Milltek Sport?

A benchmark among European tuners, Milltek Sport develops each of its systems directly on the vehicle. Mandrel bends, clean welds and aerospace-grade stainless steel ensure a system that lasts and sounds right.

Learn more

• Downpipe: decat or high-flow catalytic converter for your Stage 2?
• Exhaust systems and the technical inspection in France

Product intended exclusively for motorsport use, on closed tracks. Use on public roads is not permitted.