BMW Downpipes for BMW F83 M4 S55 3.0L

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When BMW began to offer more and more forced induction vehicles, some enthusiasts were upset and others were excited about the big power potential. While we love older, naturally aspirated BMWs, we LOVE forced induction BMWs. Upgrading your downpipe (or downpipes) is one of the easiest ways to reduce restriction and add more power to your BMW. We offer several brands, including our own designs, of downpipes for your BMW!
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Active Autowerke High Flow Catted Downpipes - F8X S55
Active Autowerke High Flow Catted Downpipes - F8X S55
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Active Autowerke - Corporate Logo
T#:2393422
Part#: 11-080
Ships in 2 Business Days
$ 2,849.99 USD
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$ 2,849.99 USD
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For over 30 years, Active Autowerke has been the one to turn to for high quality BMW performance products. Committed to enhancing the performance of BMWs through the highest quality products is what Active Autowerke is all about. Developed for precise fitment on the F87 M2C, F80 M3 and F82 BMW M4, the difference in performance will be noticeable the moment you leave your driveway! Features: NO CEL when using this downpipe Quicker turbo spool and response Less restrictive, more free flowing Improved low end and mid range performance as well as higher boost levels GESI EPA registered high flow and fully OBD2 compliant Casted upper stainless steel V-Band for precise fitment Withstands up to 1500F Can reach operational efficiency within 9 seconds of startup Easily bolts-on with no cutting or welding required Accepts OEM O2 sensor heat shield Durable construction from TIG welded 304 stainless steel Precise fitment Ultra high flow 400 cell per square inch catalyst EPA compliant for use on OBD2 vehicles (1996 and newer) except in California 304 stainless steel substrate is furnace braised to the mantle for outstanding durability GESI proprietary precious metal loading technology ensures greatly reduced emissions Ideal for Forced Induction Applications with no loss of HP Both passengers and drivers are safe from harmful emissions and noise Covered by 5 Year / 50,000 Mile Warranty (on catalytic converter) Made in Miami, Florida
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CTS 3" Stainless Steel Downpipe With High-Flow Cats - F8X S55
CTS 3" Stainless Steel Downpipe With High-Flow Cats - F8X S55 ...
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CTS - Corporate Logo
T#:14254799
Part#: EXH-DP-0025-CAT
Ships in 7 Business Days
$ 599.99 USD
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$ 599.99 USD
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CTS Turbo is proud to announce the release of our High-Flow CATS for BMW F80/F82 M3/M4/M2 Competition Our stainless steel high-flow CAT downpipes allow for faster spool, better transient boost response, higher boost, and great sound. Our downpipes are the first part of our modular exhaust system and are compatible with factory mid-pipes and our upcoming CTS Turbo mid-pipes. You should expect strong torque gains when paired with appropriate tuning software. We used CAD simulation to streamline the flow of exhaust gasses and ensure seamless integration with the factory and CTS exhaust components. Many hours of R&D were spent to ensure a perfect fit, smooth exhaust flow, and excellent sound. Use of Bootmod3 software compatible and is strongly recommended. CEL will illuminate if correct software tuning is not used. Features: Large 3″ Durable 304 food-grade stainless steel Laser-cut flanges Factory-like placement of O2 sensors Designed using the latest 3D scanning technology Exhaust flow simulated with CAD software to ensure optimal flow routing Perfect fit with factory or aftermarket mid-pipes Aggressive sound – really makes that S55 scream Fitment: 2015+ BMW S55 M3 (North America) 2015+ BMW S55 M4 (North America) 2018+ BMW S55 M2C (North America) Stage 2 software is required to avoid check engine light.
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S55 Catted Downpipes w/ 200 Cell Sport Cat - F8X M3/M4/M2C
S55 Catted Downpipes w/ 200 Cell Sport Cat - F8X M3/M4/M2C
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Racing Dynamics - Corporate Logo
T#:638274
Part#: 1301055450
Ships in 5 Business Days
$ 1,390.00 USD
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$ 1,390.00 USD
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Racing Dynamics has been a huge part of the European community since the early 80's. Their sway bars and strut braces are developed from pure professional experience, utilizing the expertise of skilled race engineers to develop or improve products to meet the demands of BMW drivers. The dedicated focus on performance, comfort, and strength are what make Racing Dynamics products the best on the market no matter if it's street or track.
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Wagner Tuning High Flow 200 Cell Catted Downpipe - F8X S55
Wagner Tuning High Flow 200 Cell Catted Downpipe - F8X S55
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Wagner Tuning - Corporate Logo
T#:587590
Part#: 500001023
Ships in 1 Business Day
$ 2,290.00 USD
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$ 2,290.00 USD
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A higher flowing catalytic substrate for dramatically improved throttle response and torque.
Downpipe To Cat-Back Reducer - Priced Each
Downpipe To Cat-Back Reducer - Priced Each
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ECS - Corporate Logo
T#:22427013
Part#: 006555ECS06B
In Stock
Sale - Save 25% $ 39.99

This product was last offered at the strikethrough price on
06-14-2026

$ 29.99 USD
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Sale - Save 25%
$ 39.99

This product was last offered at the strikethrough price on
06-14-2026

$ 29.99 USD
Free Shipping on orders $49 and up
Add to Wish List

Upgrade your exhaust system with the Downpipe To Cat-Back Reducer.

Engineered for optimal performance and durability, this reducer allows for seamless connection between your downpipe and cat-back exhaust system. Its high-quality construction ensures a tight seal, reducing exhaust leaks and enhancing overall exhaust flow. With easy installation and compatibility with various exhaust systems, this reducer is a must-have for any performance enthusiast.

  • Allows for seamless connection between downpipe and cat-back exhaust
  • High-quality construction for durability
  • Tight seal reduces exhaust leaks
  • Enhances overall exhaust flow
  • Easy installation and compatibility with various exhaust systems
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VRSF Replacement Chargepipe Methanol/Water Injection Bung Plug for 07-16 BMW N54/ N55/ N20/ N26/ S55/ B58
VRSF Replacement Chargepipe Methanol/Water Injection Bung Plug for 07...
Fits N54/ N55/ N20/ N26/ S55/ B58 Engines from 2007-2016
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VRSF - Corporate Logo
T#:35154903
Part#: 504010
In Stock
$ 8.99 USD
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$ 8.99 USD
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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. VRSF Replacement Chargepipe Methanol/Water Injection Bung Plug for 07-16 BMW N54/ N55/ N20/ N26/ S55/ B58 is a crucial component for maintaining peak performance in turbocharged BMW engines. Designed to prevent boost leaks and ensure a secure seal for methanol and water injection ports, this bung plug is crafted from premium materials for long-lasting reliability. Compatible with VRSF chargepipes, it is an ideal solution for BMW enthusiasts seeking precision and durability in their high-performance setups. Available through Turner Motorsport, this part ensures seamless integration with your BMW's engine components.

Benefits: Ensures a secure seal for methanol and water injection ports to prevent boost leaks Built from high-quality materials for superior strength and longevity Compatible with VRSF chargepipes on 07-16 BMW N54, N55, N20, N26, S55, and B58 engines Easy installation minimizes downtime and simplifies engine upgrades Maintains optimal turbo efficiency and performance in high-pressure systems The VRSF Replacement Chargepipe Methanol/Water Injection Bung Plug for 07-16 BMW N54/ N55/ N20/ N26/ S55/ B58 is the ultimate choice for BMW owners committed to maximizing reliability and performance.

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Downpipes W Active A-flow Cats - F10/F12 M5/M6
Downpipes W Active A-flow Cats - F10/F12 M5/M6
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Active Autowerke - Corporate Logo
T#:51110145
Part#: 11-093A
Ships in 3 Business Days
New Item
$ 2,279.00 USD
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$ 2,279.00 USD
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Efficiency in a forced-induction engine is determined by the pressure differential across the turbine wheel. Active Autowerke's Aflow Catted Downpipes maximize this differential by utilizing a streamlined, low-restriction design. Each set is hand-made from premium 304 stainless steel and features furnace-braised substrates for maximum longevity under the extreme temperatures of the "hot-V" turbo configuration. The integrated 400-cell catalytic converters reach operational efficiency within just 9 seconds of startup, ensuring the system meets modern OBD2 requirements while supporting up to 800 HP without a loss in performance. Key Features: Precision Fitment: Each unit is meticulously TIG-welded and checked against master jigs to guarantee a perfect bolt-on installation with no cutting or welding. EPA Compliant: 49-state EPA registered and fully OBD2 compliant (Excludes California). Thermal Management: Engineered to reduce radiant heat in the engine bay compared to restrictive factory units. High-Flow Catalyst Substrate: 304 stainless steel substrate furnace-braised to the mantle for outstanding vibration and heat resistance. Comprehensive Protection: Covered by a 5-year/50,000-mile structural warranty and a 2-year core warranty. Specifications: Inlet Type: Precision-casted 3.5" Stainless Steel V-Band Outlet Diameter: 3.0" Mandrel-Bent Tubing Catalyst Matrix: 400 Cells Per Square Inch Operating Temperature: Tested to withstand up to 1,500°F Vehicle Fitment: * 2011–2016 BMW M5 (F10) 2012–2018 BMW M6 Coupe / Convertible / Gran Coupe (F12/F13/F06) Custom Build Time: Typically made-to-order (Approx. 2-week lead time)
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Large Bore Downpipes And Hi-Flow Sports Cats - F80/F82
Large Bore Downpipes And Hi-Flow Sports Cats - F80/F82
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For Vehicles Produced before 01/19
Milltek Sport - Corporate Logo
T#:593554
Part#: SSXBM1030
Ships in 3 Business Days
$ 3,596.99 USD
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$ 3,596.99 USD
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With in-house production and engineering in the United Kingdom, they have been designing and developing exhaust systems for over 32 years. This experience has helped put Milltek on the map when it comes to performance exhausts, with offerings that range from Audi/Volkswagen to Porsche, BMW, and even Bentley. But, they don't stop there. Milltek has also made its presence felt in the motorsport community. Through partnerships with various race teams throughout the world, Milltek has gathered feedback on ways to improve their systems from enthusiasts at every level. Constructed of type-304 aircraft grade stainless steel, the quality is top-notch. To take it a step further, Milltek offers a lifetime warranty to the original purchaser.
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Downpipe W Active A-flow Cat - F3x/F87 M2
Downpipe W Active A-flow Cat - F3x/F87 M2
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Active Autowerke - Corporate Logo
T#:51110147
Part#: 11-040A
Ships in 3 Business Days
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$ 1,399.00 USD
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Active Autowerke’s Aflow Catted Downpipe offers the perfect balance for the BMW owner who demands high performance but requires daily-driver refinement. Unlike track-only "straight pipes," the Aflow system utilizes a sophisticated metallic substrate catalytic converter that significantly reduces harmful emissions and raw fuel odors. This allows you to enjoy the power of a high-flow exhaust while maintaining a clean cabin environment and remaining OBD2 compliant. Each unit is custom-made in Miami and features cast upper flanges to ensure a factory-perfect, leak-free seal every time. Key Features: Clean Performance: High-flow catalyst virtually eliminates the raw fuel smell associated with aftermarket downpipes. Precision Engineering: Features a casted stainless steel upper V-band for a surgical fit against the turbo housing. OBD2 Compliance: Engineered to satisfy factory emissions monitors, keeping the dash clear of "Efficiency" codes. Refined Acoustics: Increases the exhaust volume under wide-open throttle while remaining quiet and sophisticated during highway cruising. Heat Management: Designed to withstand the intense thermal cycles of a high-output turbocharged engine. Specifications: Catalyst Cell Density: Optimized for high-flow performance and emissions scrubbing Fabrication: Hand-made in Miami, Florida, USA Inlet Type: Casted Stainless Steel V-Band Weight: Significantly lighter than the heavy factory ceramic catalytic converter Vehicle Fitment: * 2014–2016 BMW M235i (F22) 2012–2015 BMW 335i (F30/F31/F34) 2014–2016 BMW 435i (F32/F33/F36) 2016–2018 BMW M2 (F87 - N55 Engine Only)
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