Milltek decat pipe replacement BMW 3 Series F80 M3 2014-2018, 4 Series F82-F83 M4 2014-2018, secondary cat delete, no muffler

Milltek Sport decat pipe for BMW 3 Series F80 M3 / 4 Series F82-F83 M4

This Milltek Sport decat pipe for BMW 3 Series F80 M3 / 4 Series F82-F83 M4 replaces a catalytic converter with a free-flowing stainless steel pipe, for maximum flow and a more aggressive tone.

Technical specifications

• Milltek part number: SSXBM1032
• Part type: Decat pipe
• Detail: secondary cat replacement, no muffler
• Tube diameter: 76.2 mm (3 inches)
• Installation information: fits Milltek exhaust systems (all versions) with OEM or Milltek downpipes
• Material: aerospace-grade stainless steel
• Manufacturer: Milltek Sport (United Kingdom)

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)

Unsure about fitment for your vehicle? Contact us with your VIN before ordering.

Most frequently asked questions

• Is an ECU tune required? Yes. A suitable ECU map (Stage 2) is essential to make the most of the gain and avoid an engine warning light related to the lambda sensors. It's the question buyers ask most, and the answer is always the same.
• And the technical inspection? A decat downpipe won't pass the emissions test. This product is reserved for motorsport use.
• Exhaust compatibility: this decat pipe is designed to connect to a Milltek exhaust. Check the suitable version if you keep the original exhaust.

Why choose Milltek Sport?

Owner feedback most often mentions fit quality and a deep tone, present but never harsh. That's the Milltek Sport signature, a British manufacturer specializing in stainless steel exhausts.

Further reading

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

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