Downpipe Milltek BMW 3 Series F80 M3 2019-2020, 4 Series F82-F83 M4 2019-2020 - Decat Pipe and DPF Bypass

Milltek Sport decatted turbo downpipe for BMW 3 Series F80 M3 / 4 Series F82-F83 M4

On the BMW 3 Series F80 M3 / 4 Series F82-F83 M4, the factory downpipe and its catalytic converter restrict exhaust gas flow. This large-diameter Milltek Sport decatted turbo downpipe is the foundation of a serious Stage 2 build.

Technical specifications

• Milltek part number: SSXBM1128
• Part type: Decatted turbo downpipe
• Details: Large-diameter decatted downpipe and DPF bypass
• Pipe diameter: 76.2 mm (3 inches)
• Fitting information: Milltek exhaust fitment
• Material: aerospace-grade stainless steel
• Manufacturer: Milltek Sport (UK)

Compatible vehicles

• BMW 3 Series F80 M3 3.0 Biturbo (M3 Competition and M3 CS, Sedan, 2019-2020, with DPF)
• BMW 4 Series F82-F83 M4 3.0 Biturbo (M4, M4 Competition and M4 CS, Coupe / Convertible, 2019-2020, with DPF)

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

Most frequently asked questions

• Is a remap required? Yes. A suitable Stage 2 map is essential to get the most out of the gain and avoid a check engine light linked to the lambda sensors. It is the question buyers ask most often, and the answer is always the same.
• And the contrôle technique? A decatted downpipe will not pass the emissions test. This product is reserved for motorsport use.
• Exhaust compatibility: this downpipe is designed to connect to a Milltek exhaust. Check the version suited to your setup if you keep the factory exhaust.

Why choose Milltek Sport?

Milltek Sport designs and manufactures its exhausts in England, with mandrel-bent tubing to preserve the internal diameter and a fit developed on the vehicle. The result: a clean installation without modification, and a tone tuned to remain pleasant for daily driving.

Further reading

• Turbo downpipe: decat or high-flow cat for your Stage 2?
• Exhaust and contrôle technique in France

Product intended exclusively for motorsport use, on closed circuits. Its use on public roads is not permitted.