BMW M3 and M4 F80 F82 (S55) Exhaust Guide

2 min read

The BMW M3 F80 and M4 F82 use the S55, a twin-turbo inline-six. KHH lists made-to-order downpipes and midpipes for both cars, plus a titanium exhaust for the M3. This guide explains each part and how to choose.

Which parts KHH lists for the BMW M3 and M4 F80 F82

Delivery is free worldwide.

What each part does on the S55 engine

The downpipe is the first section of exhaust after the turbo. Every exhaust gas leaving the engine goes through it, so it is a key part of the system. The S55 has two turbos, so it has two downpipes. The listings are for the car as a set, so check the product page for what is included.

The midpipe joins the downpipe to the rear of the system. It runs under the middle of the car. KHH lists one midpipe for the M3 F80 and one for the M4 F82.

The exhaust is the rear section. It carries the gas to the tips and sets how the car sounds. Valved exhausts are quieter when the valves are closed. The F80 exhaust on the list is made from titanium. It is the highest priced part for this car, so it suits a buyer who already knows they want the full system.

How to choose: one part or the full system

If you want a smaller first step, begin with the downpipes. They are the lowest priced items for these cars. The midpipe is the next part along the system, and the exhaust is the last.

If you want every section to match, order all three. They are separate products, so you can also buy them one at a time and add to the system later. Delivery is free on every order.

What to check before you order

  1. Exact chassis and years. Open the product page and read the Fits list. Match your chassis code and model years to it before you buy. Both cars share the F80 and F82 years in their titles, but each listing is for one car, so choose the M3 or the M4 that matches yours. The exhaust is listed for the M3 F80 only.
  2. Tune. A tune may be needed after a downpipe, and some cars show a check-engine light without one.
  3. Road or track. Some parts are for road use and some are for off-road and track use only. Check the rules where you drive.

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Next step

Browse all BMW M3 and M4 F80 F82 parts. For more background, read Downpipe, midpipe or exhaust: what is the difference and Is a downpipe legal in the UAE?.