2015-2018 BMW M3 downpipes

11 downpipes for the F80 2015-2018 BMW M3 (S55 3.0L twin-turbo inline-six) from 7 brands. The downpipe joins the turbocharger outlet to the rest of the exhaust. Aftermarket versions are sold with a high-flow catalytic converter or without one.

Before you order

Removing or replacing a catalytic converter with a part that is not certified for the vehicle is illegal for road use under the federal Clean Air Act. Catless parts are sold for off-road use only.
In California and other CARB states a replacement converter needs an Executive Order number for the specific vehicle.
Check the retailer listing for whether engine software changes are required.
Listings are read from the retailer's F80 M3 (S55 3.0L) category. Competition Package and CS cars can use different parts. Confirm model year and options on the retailer page before ordering.

Brands on this page: Active Autowerke (4), Milltek Sport (2), CTS (1), MAD (1), Racing Dynamics (1), VRSF (1), Wagner Tuning (1).

Active Autowerke · Part no. 11-040A
Active Autowerke Downpipe W Active A-flow Cat - F3x/F87 M2
These downpipes replace the restrictive factory units to deliver faster turbo spool, increased horsepower, and a more aggressive exhaust note.
Check price at ECS Tuning for Active Autowerke Active Autowerke Downpipe W Active A-flow Cat - F3x/F87 M2 (opens the retailer site)
Active Autowerke · Part no. 11-093A
Active Autowerke Downpipes W Active A-flow Cats - F10/F12 M5/M6
These downpipes replace the restrictive factory units to deliver faster turbo spool, increased horsepower, and a more aggressive exhaust note.
Check price at ECS Tuning for Active Autowerke Active Autowerke Downpipes W Active A-flow Cats - F10/F12 M5/M6 (opens the retailer site)
Active Autowerke · Part no. 11-080A
Active Autowerke Downpipes W Active A-flow Cats - S55
These downpipes replace the restrictive factory units to deliver faster turbo spool, increased horsepower, and a more aggressive exhaust note.
Check price at ECS Tuning for Active Autowerke Active Autowerke Downpipes W Active A-flow Cats - S55 (opens the retailer site)
Active Autowerke · Part no. 11-080
Active Autowerke High Flow Catted Downpipes
Will not produce a CEL
Check price at ECS Tuning for Active Autowerke Active Autowerke High Flow Catted Downpipes (opens the retailer site)
CTS · Part no. EXH-DP-0025-CAT
3" Stainless Steel Downpipe With High-Flow Cats - F8X S55
These CTS downpipes allow for faster spool, better transient boost response, higher boost, and great sound
Check price at ECS Tuning for CTS 3" Stainless Steel Downpipe With High-Flow Cats - F8X S55 (opens the retailer site)
MAD · Part no. MAD-2050
MAD S55 Catted Downpipes M2C/M3/M4 With Flex Section
Recuses backpressure caused by stock catalytic converters. Can produce a 30hp increase.
Check price at ECS Tuning for MAD MAD S55 Catted Downpipes M2C/M3/M4 With Flex Section (opens the retailer site)
Milltek Sport · Part no. SSXBM1127
Hi-Flow Sports Catted Downpipes
Motorsport pedigree. Superior quality. Excellent sound. Milltek Sport Hi-Flow catted downpipes for enhanced performance.
Retailer fitment note: Requires Milltek Catback Exhaust For Vehicles Produced after 12/18
Check price at ECS Tuning for Milltek Sport Hi-Flow Sports Catted Downpipes (opens the retailer site)
Milltek Sport · Part no. SSXBM1030
Large Bore Downpipes And Hi-Flow Sports Cats
Motorsport pedigree. Superior quality. Excellent sound. Milltek Sport Hi-Flow catted downpipes for enhanced performance.
Retailer fitment note: For Vehicles Produced before 01/19
Check price at ECS Tuning for Milltek Sport Large Bore Downpipes And Hi-Flow Sports Cats (opens the retailer site)
Racing Dynamics · Part no. 1301055450
S55 Catted Downpipes w/ 200 Cell Sport Cat - F8X M3/M4/M2C
Increase the overall power at your foot with these upgraded performance downpipes from racing dynamics. Racing Dynamics has been a huge part of the European community since the early 80's!
Check price at ECS Tuning for Racing Dynamics S55 Catted Downpipes w/ 200 Cell Sport Cat - F8X M3/M4/M2C (opens the retailer site)
VRSF · Part no. 504010
VRSF Replacement Chargepipe Methanol/Water Injection Bung Plug
This plug is a replacement for the following models: 10901020A, 10901020B, 10901020C, 10901020D, 10301050, 10101020 and any other VRSF chargepipe that utilizes a water injection bung
Retailer fitment note: Fits N54/ N55/ N20/ N26/ S55/ B58 Engines from 2007-2016
Check price at ECS Tuning for VRSF VRSF Replacement Chargepipe Methanol/Water Injection Bung Plug (opens the retailer site)
Wagner Tuning · Part no. 500001023
High Flow 200 Cell Catted Downpipe
Unleash the power of your car by reducing the biggest restriction in your exhaust, while remaining emissions compliant.
Check price at ECS Tuning for Wagner Tuning High Flow 200 Cell Catted Downpipe (opens the retailer site)

2015-2018 BMW M3 downpipes

Before you order

Active Autowerke Downpipe W Active A-flow Cat - F3x/F87 M2

Active Autowerke Downpipes W Active A-flow Cats - F10/F12 M5/M6

Active Autowerke Downpipes W Active A-flow Cats - S55

Active Autowerke High Flow Catted Downpipes

3" Stainless Steel Downpipe With High-Flow Cats - F8X S55

MAD S55 Catted Downpipes M2C/M3/M4 With Flex Section

Hi-Flow Sports Catted Downpipes

Large Bore Downpipes And Hi-Flow Sports Cats

S55 Catted Downpipes w/ 200 Cell Sport Cat - F8X M3/M4/M2C

VRSF Replacement Chargepipe Methanol/Water Injection Bung Plug

High Flow 200 Cell Catted Downpipe

More 2015-2018 BMW M3 parts