Downpipe Milltek BMW 3 Series F80 M3 3.0 Biturbo 2014-2018, 4 Series F82-F83 M4 3.0 Biturbo 2014-2018 without DPF - Decat

Milltek Sport Decat Downpipe for BMW 3 Series F80 M3 / 4 Series F82-F83 M4

The downpipe is the first restriction on a tuned turbo engine. This Milltek Sport decat downpipe for BMW 3 Series F80 M3 / 4 Series F82-F83 M4 opens up the exhaust right after the turbo, for faster spool-up and a stronger boost build-up.

Technical specifications

• Milltek part number: SSXBM1031
• Part type: Decat downpipe
• Details: Large-diameter decat downpipe
• Tube diameter: 76.2 mm (3 inches)
• Installation information: Milltek exhaust system fitment, requires lambda sensor extensions (BMW parts: 2 x 18307851168)
• Material: aerospace-grade stainless steel
• Manufacturer: Milltek Sport (UK)

Compatible vehicles

• BMW 3 Series F80 M3 3.0 Biturbo (M3 Competition incl., Sedan, 2014-2018, without DPF)
• BMW 4 Series F82-F83 M4 3.0 Biturbo (M4 and M4 Competition, Coupe, Convertible, 2014-2018, without DPF)

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

Frequently asked questions

• Is an ECU tune required? Yes. A matching Stage 2 map is essential to make the most of the gain and avoid a check engine light related to the lambda sensors. It's the question buyers ask most often, and the answer is always the same.
• What about the technical inspection? A decat downpipe will not pass the emissions inspection. This product is intended for motorsport use only.
• Exhaust compatibility: this downpipe is designed to connect to a Milltek exhaust system. Check the correct version if you keep the original exhaust.

Why choose Milltek Sport?

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

Further reading

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

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