BMW Exhaust Parts, Mufflers & Catalytic Converters for BMW 4 Series F33 (2014+)

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Performance exhaust options from the best BMW aftermarket producers and the most reliable replacement maintenance parts are all at Turner Motorsport. Over time, factory exhaust on the cleanest examples of BMW heritage shows their age. Our factory replacement exhausts are just what you need to keep your favorite car in showroom condition or finish off your restoration. If you are looking for a bump in sound and power, you can also find our performance options like Headers, Downpipes, and Mufflers from Corsa, DINAN, and others on this page.

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Genuine BMW - Corporate Logo
T#:27838480
Part#: 18328612537KT4
In Stock
$ 110.99 USD
Free Shipping on orders $49 and up
Prevent engine issues and error codes caused by exhaust leaks with the correct installation of components using appropriate gaskets and hardware.
Vibrant Performance - Corporate Logo
T#:23020135
Part#: 17970
In Stock
$ 137.99 USD
Free Shipping on orders $49 and up

Experience Enhanced Exhaust Sound Control with Vibrant Performance Bottle-Style Resonators

Vibrant Performance introduces their Bottle-Style resonators engineered with an authentic straight-through perforated core enveloped in premium multi-layer sound suppression materials. These resonators adeptly mitigate exhaust noise while maintaining unrestricted exhaust flow. Crafted from high-quality T304 stainless steel, Vibrant Performance offers a range of applications, ensuring a perfect fit for various vehicle models.

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Genuine BMW - Corporate Logo
T#:48579
Part#: 18307633092
In Stock
7% off MSRP $ 48.92

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 45.59 USD
Free Shipping on orders $49 and up
7% off MSRP
$ 48.92

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 45.59 USD
Free Shipping on orders $49 and up


Genuine BMW Rubber Mounting -
This item fits the following BMW Chassis:
F22,F30,F32,F33,F34,F36

Fits BMW Engines including:
N20,N26,N55


Magnaflow - Corporate Logo
T#:371600
Part#: 14851
Ships in 1 Business Day
$ 269.00 USD
Free Shipping
$ 269.00 USD
Free Shipping

Enhance your BMW's exhaust system with the all-new Magnaflow Universal Muffler, available at an exceptionally affordable price point. Say goodbye to noisy and inefficient mufflers with this high-performance solution.

The Race Series muffler is meticulously designed for uncompromising performance, delivering an aggressive racecar-inspired sound. Its genuine straight-through design ensures the utmost high RPM power, while the 2.5" or 3" perforated core effectively eliminates backpressure, optimizing exhaust flow.

This muffler stands as the ideal choice for dedicated racers, turbocharged engines, nitrous oxide fuel systems, or vehicles equipped with wild cam applications. It boasts a 2.25" inlet, a 24" overall length, and a 4" diameter round, angle-cut tip.

Kindly note that this muffler is of universal fit for rear exhaust and may necessitate welding or fabrication for installation, as it is not a direct bolt-on component for any specific vehicle.

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Active Autowerke - Corporate Logo
T#:40004859
Part#: 11-062A
In Stock
5% off MSRP $ 1,199.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 1,139.99 USD
Free Shipping
5% off MSRP
$ 1,199.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 1,139.99 USD
Free Shipping
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. The F Chassis B58 downpipes are strategically engineered to virtually eliminate the immensely restrictive characteristics of the factory downpipes – therefore reducing radiant heat and increasing performance. Features Include: NO CEL for catalytic efficiency when using this downpipe Active EPA registered high flow and fully OBD2 compliant Casted upper stainless steel V-Band for precise fitment 4.50" diameter piping allows for maximum power output Quicker turbo spool Rated for up to 800 hp applications Withstands up to 1500 F Can reach operational efficiency within 9 seconds of startup Easily bolts-on no cutting or welding required 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 Active 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 shell and tube ends) and 2-Year / 25,000 Mile Warranty on the Catalytic core to original purchaser only - NOTE: warranty will be null and void if your car has excessive burble (greater than stock) as that physically destroys the catalytic core Made in Miami, Florida
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Bav Auto Oxygen Sensor Tool - Angled Handle - 7/8"
10X Entries Into Our F80 M3 Sweepstakes
Bav Auto Tools - Corporate Logo
T#:580382
Part#: B8800066
In Stock
$ 38.24 USD
Free Shipping on orders $49 and up
Slotted, pivoting head has both hexagon and double hexagon drive. Angled handle reaches around obstructions. Fits all Oxygen sensors with 7/8in (22mm) hex.

Prosport Performance - Corporate Logo
T#:385020
Part#: HEA-GWRAP-15
Back Ordered
$ 33.99 USD
Free Shipping on orders $49 and up
Constructed of laminated light-weight glass cloth, this gold reflective heat tape is designed to reflect 80% of radiant heat. With excellent pliability, this tape is easy to install. It's as simple as peel and stick.
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Genuine BMW - Corporate Logo
T#:48420
Part#: 18307581970
In Stock
3% off MSRP $ 29.85

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 29.09 USD
Free Shipping on orders $49 and up
3% off MSRP
$ 29.85

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 29.09 USD
Free Shipping on orders $49 and up


Genuine BMW Gasket Ring -
This item fits the following BMW Chassis:
E89 Z4,F10,F15,F16,F22,F25 X3,F26 X4,F30,F31,F32,F33,F34,F36,I12 i8

Fits BMW Engines including:
N20,N26,N55

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Universal Exhaust Pipe Reducer - 3" OD To 60mm ID
10X Entries Into Our F80 M3 Sweepstakes
Turner Motorsport - Corporate Logo
T#:587351
Part#: TMS3060ER2KT
In Stock
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
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
Connect your differently sized exhaust pipes quick and easy with this T304 stainless steel exhaust pipe reducer. PART DESIGN Made from T304 Stainless Steel for corrosion resistance and features a raw finish 3.0" OD (Butt) To 60mm ID (slip) connections 1.5mm (.060") wall thickness tubing for durability Length on 60mm ID side - 2.25" Length on 3.0" OD side - 3.50"
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Active Autowerke - Corporate Logo
T#:638600
Part#: 11-062
In Stock
5% off MSRP $ 1,499.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 1,424.99 USD
Free Shipping
5% off MSRP
$ 1,499.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 1,424.99 USD
Free Shipping
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. The F Chassis B58 downpipes are strategically engineered to virtually eliminate the immensely restrictive characteristics of the factory downpipes – therefore reducing radiant heat and increasing performance. Features Include NO CEL when using this downpipe GESI EPA registered high flow and fully OBD2 compliant Casted upper stainless steel V-Band for precise fitment 4.50" diameter piping allows for maximum power output Quicker turbo spool Rated for 500 to 850 hp applications Withstands up to 1500° F Can reach operational efficiency within 9 seconds of startup Easily bolts-on – no cutting or welding required Durable construction from TIG welded 304 stainless steel Precise fitment Ultra high flow 400 cell per square inch catalyst EPA certified 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 shell and tube ends) and 2 year / 25,000 Mile Warranty on the Catalytic core to original purchaser only - NOTE: warranty will be null and void if your car has excessive burble (greater than stock) as that physically destroys the catalytic core Made in Miami, Florida
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Downpipe To Cat-Back Reducer - Priced Each
10X Entries Into Our F80 M3 Sweepstakes
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
Free Shipping on orders $49 and up
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

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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Genuine BMW - Corporate Logo
T#:48563
Part#: 18307620323
In Stock
4% off MSRP $ 42.40

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 40.52 USD
Free Shipping on orders $49 and up
4% off MSRP
$ 42.40

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 40.52 USD
Free Shipping on orders $49 and up


Genuine BMW Fixing Bow -
This item fits the following BMW Chassis:
F15,F16,F22,F30,F31,F32,F33,F34,F36,I12 i8

Fits BMW Engines including:
N20,N26,N55

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Genuine BMW - Corporate Logo
T#:527151
Part#: 11657643149
In Stock
15% off MSRP $ 35.85

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 30.48 USD
Free Shipping on orders $49 and up
15% off MSRP
$ 35.85

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 30.48 USD
Free Shipping on orders $49 and up
The BMW part number 11657643149 is an exhaust manifold gasket, designed to seal the connection between the exhaust manifold and cylinder head. It directs exhaust gases into the system, preventing leaks that could allow harmful fumes into the cabin.
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Dinan Heavy Duty Exhaust Band Clamp - 2.75" (70mm)
Call In Or Chat For Best Price! 10X Entries Into Our F80 M3 Sweepstakes
Dinan - Corporate Logo
T#:38688901
Part#: D662-9228
In Stock
8% off MSRP $ 23.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 21.99 USD
Free Shipping
8% off MSRP
$ 23.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 21.99 USD
Free Shipping
Perfect for the do-it-yourself customer looking for a band clamp that allows for a 360º pressure connection, this clamp fits the build. Created from stainless steel, the clamp allows for connecting to 70mm (2.75") via a swedged pipe, and provides even clamping pressure and seal around the entire pipe. This makes for a simple install, or a quick removal should the need arise.
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Bosch - Corporate Logo
T#:639141
Part#: 11788644371
In Stock
$ 159.99

This product was last offered at the strikethrough price on
05-07-2026

$ 146.99 USD
Free Shipping
$ 146.99 USD
Free Shipping
The oxygen sensor is vital to the performance and drivability of your car. The engine computer relies on data from the sensor to make adjustments in engine efficiency and performance. When your BMW oxygen sensor fails, the computer can no longer sense the air/fuel ratio, so it ends up guessing -- resulting in poor performance, poor gas mileage, and increased pollution. Make sure your BMW engine performs as it should, and doesn't use more fuel than it needs to, by simply changing your oxygen sensor today. There is no lifespan on O2 sensors but there are several fault codes that indicate a failed sensor (O2 monitoring, cat efficiency, O2 heating circuit, O2 readiness, and others). The O2 sensor is heated and has a self-calibration feature so once you get the codes or feel performance has suffered, a new sensor is a good starting point to get you back to peak performance. Bosch's Oxygen sensors are high quality and will give you the longest and best performance for the price. This is the OEM Bosch oxygen sensor for BMW's with the B58 engine. Bosch is one of the largest OEM producers of Genuine BMW and aftermarket parts in the world, providing parts for almost every major automotive manufacturer. Bosch has likely supplied many of the original electrical (and mechanical) parts for your BMW. Thanks to their quality, high durability, and reliability, you should expect a long service life from Bosch products. As a leading source of high-performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts. All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!
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Prosport Performance - Corporate Logo
T#:385025
Part#: HEA-WRAPKIT-25
In Stock
$ 29.99 USD
Free Shipping on orders $49 and up

Constructed for durability with a tight weave, this heat wrap is designed to maintain proper thermal properties in your vehicles exhaust system. This material was hand selected specifically for it's heat characteristics and flexibility. Fiberglass is rated for 1200 degrees, however, this titanium wrap can withstand 1800 degrees! 

Key Features:

  • 2" wide x 1/16" thick
  • Durable, tightly woven, 100% fiberglass
  • Reduce under hood temperatures
  • Protect other engine components
  • Protect your hands/arms from burns
  • Each roll comes with 5 FREE, 14" long stainless steel zip ties
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Magnaflow - Corporate Logo
T#:20155636
Part#: 14816
In Stock
$ 358.00 USD
Free Shipping on orders $49 and up

Enhance Your BMW with the Magnaflow Universal Muffler

Looking for an affordable way to replace your BMW's muffler and transform its exhaust note? Your search ends here! The brand-new Magnaflow Universal Muffler is your budget-friendly solution, designed to elevate your BMW's sound and style.

Key Features:

  • Budget-Friendly: The Magnaflow Universal Muffler is the go-to choice for budget-conscious BMW owners seeking an economical way to enhance their vehicle's sound.
  • Enhanced Sound: This muffler delivers an improved exhaust note, creating a deeper, more attractive tone that will make your BMW stand out from the crowd.
  • Universal Fit: With its universal fit, it is compatible with a range of BMW models, ensuring a seamless installation process.
  • Quality Construction: Crafted from durable materials, this muffler is built to last, providing long-term performance and value.
  • Turner Motorsport Approved: Endorsed by Turner Motorsport, a renowned name in the BMW community, you can trust this muffler to meet your expectations for quality and performance.

Say goodbye to that noisy ride and give your BMW the sound it deserves with the Magnaflow Universal Muffler. Upgrade today!

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Genuine BMW - Corporate Logo
T#:59956
Part#: 33306785433
In Stock
7% off MSRP $ 57.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 53.99 USD
Free Shipping on orders $49 and up
7% off MSRP
$ 57.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 53.99 USD
Free Shipping on orders $49 and up
Genuine BMW Collar Screw - M14X112-10.9

Genuine BMW - Corporate Logo
T#:48354
Part#: 18307560781
Ships in 1 day
8% off MSRP $ 75.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 69.99 USD
Free Shipping on orders $49 and up
8% off MSRP
$ 75.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 69.99 USD
Free Shipping on orders $49 and up


Genuine BMW Clamping Bush - D=75Mm
This item fits the following BMW Chassis:
E70 X5M,E71 X6M,E65,E70 X5 X5,E71 X6,F15,F16,F22,F25 X3,F26 X4 X4,F30,F31,F32,F33,F34,F36

Fits BMW Engines including:
M57,N20,N26,N52,N52N,N55,N57N,N62,S63

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Genuine BMW M Performance - Corporate Logo
T#:539370
Part#: 18302411427
In Stock
3% off MSRP $ 31.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 30.99 USD
Free Shipping on orders $49 and up
3% off MSRP
$ 31.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 30.99 USD
Free Shipping on orders $49 and up

This plug cover protects the actuator plug when a non-actuated exhaust is installed on the vehicle.

Fits the following BMWs:
All F2X and F3X models.


Stainless Steel V-Band Clamp - 2.5"
10X Entries Into Our F80 M3 Sweepstakes
Turner Motorsport - Corporate Logo
T#:587344
Part#: TMS25VBKT
In Stock
Sale - Save 25% $ 49.99

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

$ 37.49 USD
Free Shipping on orders $49 and up
Sale - Save 25%
$ 49.99

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

$ 37.49 USD
Free Shipping on orders $49 and up
Ensure you are building your custom exhaust system with only the best! This V-Band Clamp is made completely of T304 stainless steel for high strength and corrosion resistance and comes with zinc-coated hardware. PART DESIGN Weld Rings are made from T304 Stainless Steel for corrosion resistance Weld Rings are 2.5" inside diameter (ID) to slip over a 2.5" OD tube Weld Rings feature a unique "centering ring" on the ID to aid in the alignment of assembly V-Band clamp is T304 Stainless Steel Securing hardware is Zinc-coated steel with high-temp poly. lock nut INSTALLATION AND SUPPORT These are universal parts, meaning they have no direct fitment to any particular vehicle. Custom welding and fabrication is required. Special prep/clean procedures must be adhered to for proper welding.
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Universal Stainless Steel 90 Degree Pipe - 3.0" OD
10X Entries Into Our F80 M3 Sweepstakes
Turner Motorsport - Corporate Logo
T#:587361
Part#: TMS3090PKT
In Stock
Sale - Save 6% $ 36.99

This product was last offered at the strikethrough price on
09-03-2026

$ 34.85 USD
Free Shipping on orders $49 and up
Sale - Save 6%
$ 36.99

This product was last offered at the strikethrough price on
09-03-2026

$ 34.85 USD
Free Shipping on orders $49 and up
Rust can turn your exhaust system into useless scrap metal in a short period of time if you don't start with the right materials. Ensure your custom exhaust lasts as long as possible with this T304 stainless steel universal exhaust pipe! PART DESIGN Made from T304 Stainless Steel for corrosion resistance and features an attractive brushed finish 3.0" outside diameter (OD) 1.5mm (.060") wall thickness tubing for durability Minimum Leg Length - 8.25" Bend Radius - 4.75" @ 90° angle
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ECS - Corporate Logo
T#:21209855
Part#: 044081LA01
In Stock
Starting at $ 299.15 USD
Free Shipping on orders $49 and up
Starting at $ 299.15 USD
Free Shipping on orders $49 and up
Choose between a 2.5" or 3.0" valved mufflers to complete your custom exhaust.
3.0" Stainless Steel V-band Assembly - Priced Each
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:587340
Part#: 028092ECS09AKT
In Stock
$ 54.99

This product was last offered at the strikethrough price on
10-05-2026

$ 24.99 USD
Free Shipping on orders $49 and up
$ 24.99 USD
Free Shipping on orders $49 and up

3.0" Stainless Steel V-band Assembly - Priced Each

Elevate your BMW's exhaust system with the 3.0" Stainless Steel V-band Assembly - Priced Each. This top-quality V-band assembly is tailored for BMW vehicles, offering numerous advantages for enhanced exhaust performance and durability. Crafted with precision and durability in mind, it delivers:

  • Robust stainless steel construction ensures long-lasting reliability
  • Secure V-band clamp design guarantees a tight seal
  • Simple installation and removal facilitate maintenance or upgrades
  • Compatible with 3.0" exhaust systems

Upgrade your BMW's exhaust system with this stainless steel V-band assembly.

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Valvetronic Designs - Corporate Logo
T#:53149938
Part#: VTD.YPIPE.63MM
In Stock
New Item
$ 40.99 USD
Free Shipping
$ 40.99 USD
Free Shipping
Perfect for when you need to connect a single muffler to dual piping or add two tips to your single muffler!
Prosport Performance - Corporate Logo
T#:385022
Part#: HEA-GWRAP-20X20
In Stock at Vendor
$ 33.99 USD
Free Shipping on orders $49 and up

Constructed of laminated light-weight glass cloth, this gold reflective heat tape is designed to reflect 80% of radiant heat. With excellent pliability, this tape is easy to install. It's as simple as peel and stick. 

 

Key Features:

  • Can handle temperatures up to 850 Degrees Fahrenheit 
  • UV resistant 
  • Light weight easy to apply 
  • Protect sensitive engine components 
  • Cut to size 
  • Engine accent/dress up
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Prosport Performance - Corporate Logo
T#:385021
Part#: HEA-GWRAP-30
Ships in 1 Business Day
$ 56.99 USD
Free Shipping on orders $49 and up

Constructed of laminated light-weight glass cloth, this gold reflective heat tape is designed to reflect 80% of radiant heat. With excellent pliability, this tape is easy to install. It's as simple as peel and stick. 

 

Key Features:

  • Can handle temperatures up to 850 Degrees Fahrenheit 
  • UV resistant 
  • Light weight easy to apply 
  • Protect sensitive engine components 
  • Cut to size 
  • Engine accent/dress up
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Walker - Corporate Logo
T#:31324163
Part#: 11787645875
Ships in 1 Business Day
$ 93.99

This product was last offered at the strikethrough price on
05-07-2026

$ 91.99 USD
Free Shipping on orders $49 and up
$ 91.99 USD
Free Shipping on orders $49 and up
The oxygen sensor is part of your BMW's emissions control system and feeds data to BMW engine management computer. The oxygen sensor is positioned in the exhaust pipe and can detect rich and lean mixtures. The goal of the oxygen sensor is to help the engine run as efficiently as possible and also to produce as few emissions as possible. When your BMW oxygen sensor fails, the computer can no longer sense the air/fuel ratio, so it ends up guessing -- resulting in poor performance, poor gas mileage, and increased pollution. Make sure your BMW engine performs as it should, and doesn't use more fuel than it needs to, by simply changing your oxygen sensor today.
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Bosch - Corporate Logo
T#:384616
Part#: 11787589122
In Stock
$ 168.99

This product was last offered at the strikethrough price on
05-07-2026

$ 119.99 USD
Free Shipping
$ 119.99 USD
Free Shipping

A new oxygen sensor can improve driveability and lengthen engine life. Ultimately, you achieve a smoother running engine that is more fuel efficient. Feedback from the oxygen sensor provides closed-loop control of the injected quantity of fuel for optimum air-fuel mixture, enabling virtually complete combustion to take place. Contaminants in gas and certain atmospheric conditions can drastically shorten the life of any oxygen sensor, therefore they should be checked with every periodic maintenance and changed if necessary.

This is the OEM Bosch oxygen sensor for BMW's with the N20 and N26 motors. This sensor is mounted in the catalytic converter in the rear most position. OEM replacement for BMW # 11787589122.

Bosch is one of the largest OEM producers of Genuine BMW and aftermarket parts in the world, providing parts for almost every major automotive manufacturer. Bosch has likely supplied many of the original electrical (and mechanical) parts for your BMW. Thanks to their quality, high durability, and reliability, you should expect a long service life from Bosch products.

As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts.  All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

Fits the following BMWs:
All models with the N20 or N26 motor

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Genuine BMW - Corporate Logo
T#:544485
Part#: 18302414899
Ships in 1 day
3% off MSRP $ 157.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 153.99 USD
Free Shipping
3% off MSRP
$ 157.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 153.99 USD
Free Shipping
Controls the exhaust flaps depending on the drive mode

ECS N20 Muffler Delete Kit - F30/F31/F32/F33/F36
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:46684804
Part#: 039964LA01
In Stock
$ 359.99 USD
Free Shipping
$ 359.99 USD
Free Shipping

Transform the sound profile and driving dynamics of your BMW without replacing the entire exhaust system! Engineered specifically for the N20-equipped F3X platform, this direct-fit muffler delete delivers an aggressive, sporty tone you wouldn't expect from a 4-cylinder engine.

By eliminating the restrictive factory muffler and replacing it with a high-flow, straight-through exhaust pipe, this kit unlocks an incredible surge in volume and a sporty tone. Beyond the dramatic sound upgrade, this setup drastically improves performance efficiency through massive weight savings. The high-flow straight pipe removes 21 lbs from the rear of the vehicle, dropping the total axle-back exhaust weight down to just 7 lbs. Designed for quick at-home installation, it installs using basic garage hand tools and integrates perfectly with your OEM rear valance for a clean, OEM+ aesthetic.

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Bav Auto Tools - Corporate Logo
T#:580383
Part#: B8800067
In Stock
$ 24.79 USD
Free Shipping on orders $49 and up
This 1/2" Drive, 7/8" x 6" Extra Long O2 sensor tool is used to remove difficult to reach oxygen sensors.

Genuine BMW - Corporate Logo
T#:210162
Part#: 18308632154
In Stock
8% off MSRP $ 165.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 151.99 USD
Free Shipping
8% off MSRP
$ 165.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 151.99 USD
Free Shipping


Genuine BMW Actuator Drive, Exhaust Flap -
This item fits the following BMW Chassis:
F15,F16,F22,F30,F31,F32,F33,F34,F36,I12 i8

Fits BMW Engines including:
N20,N26,N55

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Genuine BMW - Corporate Logo
T#:642055
Part#: 18308632154KT
Ships in 1 day
$ 235.99 USD
Free Shipping
$ 235.99 USD
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If the exhaust flap in you vehicle is stuck open or closed, it's likely that the exhaust actuator is the culprit. This piece is that rotates the flap's position 90 degrees, allowing for increased exhaust flow for better sound and performance. Replace yours with this kit that contains all the components necessary to do the job right.
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Bosch - Corporate Logo
T#:372884
Part#: 15733
In Stock
$ 74.99

This product was last offered at the strikethrough price on
10-23-2026

$ 68.99 USD
Limited Qty Sale
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$ 74.99

This product was last offered at the strikethrough price on
10-23-2026

$ 68.99 USD
Limited Qty Sale
Free Shipping
Bosch Universal Oxygen Sensors are perfect for replacing faulty sensors throwing off a check engine lights and causing poor operation and low gas mileage. If you are looking for a cheaper option or are unable to get a hold of the sensor you need, you can reuse part of the original wiring harness to connect this high quality replacement.
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Downpipe To Catback Reducer - Priced Each
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:587348
Part#: 008709ECS03A
Ships on Feb 18, 2027
Sale - Save 25% $ 39.99

This product was last offered at the strikethrough price on
10-28-2026

$ 29.99 USD
Free Shipping on orders $49 and up
Sale - Save 25%
$ 39.99

This product was last offered at the strikethrough price on
10-28-2026

$ 29.99 USD
Free Shipping on orders $49 and up

Embark on your custom exhaust project confidently with the ECS Tuning Universal Exhaust catalog, offering quality and price-friendly options. Crafted from T304 Stainless Steel for corrosion resistance, these items feature premium benefits akin to our In-House Engineered Exhaust Systems. With a 3.0" ID (Slip fit) X 65mm OD (Butt) connections, 1.5mm (.060") wall thickness tubing ensures durability. Length on the 65mm OD side is 2.25" while on the 3.0" ID side is 3.50". Ideal for fabricating your unique exhaust system, these universal parts guarantee top-tier quality and longevity.

Benefits:

  • Crafted from T304 Stainless Steel for corrosion resistance
  • Features premium benefits akin to In-House Engineered Exhaust Systems
  • Durable construction with 1.5mm (.060") wall thickness tubing
  • Ideal for fabricating custom exhaust projects
  • Ensures top-tier quality and longevity
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Universal Stainless Steel J-Pipe - 2.5" OD
10X Entries Into Our F80 M3 Sweepstakes
Turner Motorsport - Corporate Logo
T#:587362
Part#: TMS25JPKT
In Stock
Sale - Save 5% $ 46.99

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

$ 44.64 USD
Free Shipping on orders $49 and up
Sale - Save 5%
$ 46.99

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

$ 44.64 USD
Free Shipping on orders $49 and up
Rust can turn your exhaust system into useless scrap metal in a short period of time if you don't start with the right materials. Ensure your custom exhaust lasts as long as possible with this T304 stainless steel universal exhaust pipe! PART DESIGN Made from T304 Stainless Steel for corrosion resistance and features an attractive brushed finish 2.5" outside diameter (OD) 1.5mm (.060") wall thickness tubing for durability U-Bend Centerline Radius - 3.50" @ 180° angle Leg Length "A" - 5.0" Leg Length "B" - 5.50" Leg Length "C" - 7.0"
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Stainless Steel V-Band Clamp - 3.0"
10X Entries Into Our F80 M3 Sweepstakes
Turner Motorsport - Corporate Logo
T#:587341
Part#: TMS30VBKT
In Stock
$ 54.99

This product was last offered at the strikethrough price on
10-07-2026

$ 24.99 USD
Free Shipping on orders $49 and up
$ 24.99 USD
Free Shipping on orders $49 and up
Ensure you are building your custom exhaust system with only the best! This V-Band Clamp is made completely of T304 stainless steel for high strength and corrosion resistance and comes with zinc-coated hardware. PART DESIGN Weld Rings are made from T304 Stainless Steel for corrosion resistance Weld Rings are 3.0" inside diameter (ID) to slip over a 3.0" OD tube Weld Rings feature a unique "centering ring" on the ID to aid in the alignment of assembly V-Band clamp is T304 Stainless Steel Securing hardware is Zinc-coated steel with high-temp poly. lock nut ​INSTALLATION AND SUPPORT These are universal parts, meaning they have no direct fitment to any particular vehicle. Custom welding and fabrication is required. Special prep/clean procedures must be adhered to for proper welding.
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Universal Exhaust Pipe Reducer - 3" ID To 65mm OD
10X Entries Into Our F80 M3 Sweepstakes
Turner Motorsport - Corporate Logo
T#:587349
Part#: TMS3065ERKT
Ships on Feb 18, 2027
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
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
Connect your differently sized exhaust pipes quick and easy with this T304 stainless steel exhaust pipe reducer. PART DESIGN Made from T304 Stainless Steel for corrosion resistance and features a raw finish 3.0" ID (Slip fit) X 65mm OD (Butt) connections 1.5mm (.060") wall thickness tubing for durability Length on 65mm OD side - 2.25" Length on 3.0" ID side - 3.50"
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Active Autowerke - Corporate Logo
T#:599319
Part#: 11-040-C
Ships in 3 Business Days
$ 1,424.99 USD
Free Shipping
$ 1,424.99 USD
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BMW introduced a new valvetronic, single turbo version of its direct-injection engine for the F-Chassis models beginning in 2012. The Active Autowerke N55 downpipe for the M235i, 335i, 435i and M2 helps unleash some of the potential that is restricted by the OEM downpipe. Turbochargers are powered by spent exhaust gases created during the combustion process. The quicker these gases are evacuated, the better. Unfortunately, the factory down pipe in the N55 is quite restrictive, which results in slower exhaust gases and slower turbo spool. The Active Autowerke F-Chassis N55 Signature down pipe utilizes 3.5” diameter stainless steel piping in order to provide more power, quicker spool, and extreme durability. This variant includes a 4.5" high flow GESI catalytic converter that will NOT produce a CEL! The GESi® G-Sport Ultra High Output Catalytic Converter features full 304 stainless steel construction, including the substrate. GESi® UHO-Series Catalytic Converters are EPA certified in 49 states and fully OBD2 compliant. GESi® proprietary precious metal loading technology ensures greatly reduced emissions, eliminating most "Check Engine Lights". These high flow catalytic converters outperform stock converters and provide a reliable solution to the most common catalytic converter problems. The GESi® UHO-Series Catalytic Converters are rated for engines putting out between 500 and 850 horsepower while maintaining a high flow capacity. The reduced back-pressure from this high flow catalytic converter will allow you to maximize your engines horsepower without the harmful emissions. Say goodbye to Check Engine Lights and failed emissions tests! Please Note: These catalytic converters are not legal for use on vehicles registered in the state of California as a result of California Vehicle Code Section 27156 and 38391.
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2.5" OD Stainless Steel "U-J Bend" - Priced Each
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:22756729
Part#: 028092ECS03AKT
In Stock
Sale - Save 5% $ 46.99

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

$ 44.64 USD
Free Shipping on orders $49 and up
Sale - Save 5%
$ 46.99

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

$ 44.64 USD
Free Shipping on orders $49 and up

2.5" OD Stainless Steel "U-J Bend"

Revamp your BMW's exhaust system with the 2.5" OD Stainless Steel "U-J Bend". This high-quality "U-J Bend" is specifically designed for BMW vehicles, offering several advantages for improved exhaust performance and durability. Engineered with precision and quality in mind, it provides:

  • Durable stainless steel construction ensures longevity and reliability
  • "U-J Bend" design facilitates smooth exhaust flow
  • Easy installation with a 2.5" outer diameter
  • Compatible with various BMW models

Upgrade your BMW's exhaust system with this stainless steel "U-J Bend".

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Valvetronic Designs - Corporate Logo
T#:53149956
Part#: UVM.63MM.X2
In Stock
New Item
$ 599.99 USD
Free Shipping
$ 599.99 USD
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Unlock the true sound of your engine with the Valvetronic Designs universal valved muffler kit, a premium T304 stainless steel solution that offers the perfect balance between aggressive performance and neighborhood-friendly quiet at the push of a button.
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Active Autowerke - Corporate Logo
T#:5886981
Part#: 11-079
Ships in 3 Business Days
$ 1,424.99 USD
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$ 1,424.99 USD
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The Active Autowerke F-Chassis N20 Signature down pipe utilizes 3.5 diameter stainless steel piping in order to provide more power, quicker spool, and extreme durability. The GESi UHO-Series Catalytic Converters are rated for engines putting out between 500 and 850 horsepower while maintaining a high flow capacity. The reduced back-pressure from this high flow catalytic converter will allow you to maximize your engines horsepower without the harmful emissions. Say goodbye to Check Engine Lights and failed emissions tests! Features: NO CEL when using this downpipe Designed to be as unrestrictive as possible GESI EPA registered high flow and fully OBD2 compliant High flow 4" GESI cat with 3.50" piping allows for maximum power output Quicker turbo spool - improved power over stock Rated for 350 to 500 hp applications Withstands up to 1500 F Can reach operational efficiency within 9 seconds of startup Easily bolts-on no cutting or welding required Durable construction from TIG welded 304 stainless steel Precise fitment Modular design for later upgrades Made in Miami, Florida Ultra high flow 400 cell per square inch catalyst EPA compliant for use on OBD2 vehicles (1996 and newer) except in California Full 304 stainless steel construction 304 stainless steel substrate in the catalytic converter is furnace braised to the mantle for outstanding durability GESi proprietary precious metal loading technology ensures greatly reduced emissions Covered by 5 Year / 50,000 Mile Warranty (on catalytic converter) Ideal for Forced Induction Applications with no loss of HP Both passengers and drivers are safe from harmful emissions and noise ACTIVE AUTOWERKE N20 SIGNATURE DOWNPIPE BENEFITS The speed of a turbo's impeller wheel is limited by exhaust back pressure. A larger down pipe relieves some of this pressure, resulting in quicker and more efficient spool. With Active Autowerke's Signature downpipe, your N20 can rev quicker, and deliver more horsepower and torque. Minimizing back pressure while remaining daily drive-ability was the goal of our N20 downpipe. Owners can now upgrade to a product that is affordable, reliable, and easy to install. After months of research and development, our engineers settled on a 3.5 diameter pipe which utilizes the least number of bends possible. However, the Signature N20 down pipe still fits easily into the OEM location, with a painless installation process. Constructed entirely from 304 stainless steel with 1.5MM wall thickness, we are confident that you'll be pleased with how robust and durable this down pipe is. Trouble-free installation and a long lifespan ensure that you'll enjoy many miles of performance with your N20!
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Walker - Corporate Logo
T#:5229442
Part#: 11788611294
Ships in 2 Business Days
$ 142.99

This product was last offered at the strikethrough price on
05-07-2026

$ 138.99 USD
Free Shipping
$ 138.99 USD
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BMW B58 3.0L Oxygen Sensor - Downstream is essential for maintaining optimal engine performance and fuel efficiency. Turner Motorsport offers this high-quality replacement sensor designed to precisely measure exhaust oxygen levels, allowing the vehicle's computer to accurately adjust the air/fuel ratio and monitor emissions. A degraded oxygen sensor can lead to decreased engine performance, reduced fuel efficiency, and increased harmful emissions, potentially triggering the Check Engine Light and causing a failure in emissions testing.

  • Ensures Optimal Engine Performance: Accurately measures exhaust oxygen levels for precise air/fuel ratio adjustments.
  • Improves Fuel Efficiency: Helps maintain proper fuel mixture, reducing fuel consumption.
  • Reduces Harmful Emissions: Keeps emissions in check, ensuring compliance with environmental standards.
  • Prevents Check Engine Light Activation: Helps avoid unnecessary warning lights and potential emissions test failures.
  • Quality Replacement: High-grade sensor designed specifically for the BMW B58 3.0L engine.
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CTA Tools - Corporate Logo
T#:2393414
Part#: CTA2073
In Stock
$ 50.01 USD
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Get the complete set.

Universal Exhaust Pipe Reducer - 3" ID To 60mm OD
10X Entries Into Our F80 M3 Sweepstakes
Turner Motorsport - Corporate Logo
T#:587350
Part#: TMS3060ER1KT
In Stock
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
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
Connect your differently sized exhaust pipes quick and easy with this T304 stainless steel exhaust pipe reducer. PART DESIGN Made from T304 Stainless Steel for corrosion resistance and features a raw finish 3.0" ID (Slip) To 60mm OD (Butt) connections 1.5mm (.060") wall thickness tubing for durability Length on 60mm OD side - 2.25" Length on 3.0" ID side - 3.50"
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Universal Stainless Steel J-Pipe - 3.0" OD
10X Entries Into Our F80 M3 Sweepstakes
Turner Motorsport - Corporate Logo
T#:587363
Part#: TMS30JPKT
Back Ordered
$ 51.29 USD
$ 51.29 USD
Rust can turn your exhaust system into useless scrap metal in a short period of time if you don't start with the right materials. Ensure your custom exhaust lasts as long as possible with this T304 stainless steel universal exhaust pipe! PART DESIGN Made from T304 Stainless Steel for corrosion resistance and features an attractive brushed finish 3.0" outside diameter (OD) 1.5mm (.060") wall thickness tubing for durability U-Bend Centerline Radius - 5.0" @ 180° angle Leg Length "A" - 5.0" Leg Length "B" - 9.50" Leg Length "C" - 10.5"
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Valvetronic Designs - Corporate Logo
T#:53149959
Part#: UVM.76MM.X1
Ships in 1 Business Day
New Item
$ 399.99 USD
Free Shipping
$ 399.99 USD
Free Shipping
Unlock the true sound of your engine with the Valvetronic Designs universal valved muffler kit, a premium T304 stainless steel solution that offers the perfect balance between aggressive performance and neighborhood-friendly quiet at the push of a button.
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Dinan Exhaust Valve Remote - Most BMWs 2012+
Call In Or Chat For Best Price! 10X Entries Into Our F80 M3 Sweepstakes
Dinan - Corporate Logo
T#:600153
Part#: R660-0001
Back Ordered
11% off MSRP $ 358.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 318.99 USD
Free Shipping
11% off MSRP
$ 358.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 318.99 USD
Free Shipping
The Dinan Exhaust Valve Remote lets you override the factory exhaust valve operation and fully open (or close) the valve at the press of a button. Directly compatible with 'F' and 'G' chassis BMW's using a single electronic valve as well as 3rd generation MINI's, the Dinan Exhaust Valve Remote Kit is robust in its potential applications. Once installed simply press the top button of the supplied wireless remote to open the valve fully and enjoy maximum aural pleasure. Alternatively, when the need arises for the exhaust to be as quiet as possible, press the bottom button on the remote and the valve will close. This system works with both the factory exhaust and any aftermarket system that utilizes the factory electronic exhaust valve actuator. Tested and compatible valve actuators include BMW P/N's 18307851568, 18308686640, 18308632154, and 18308623424. Features: Opens the factory electronic exhaust valve with the push of a button. Wirelessly remote controlled. Weatherproof housing. Extra length wiring harnesses for maximum application and routing versatility.
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Genuine BMW - Corporate Logo
T#:48568
Part#: 18307628660
Ships Today
8% off MSRP $ 47.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 43.99 USD
Free Shipping on orders $49 and up
8% off MSRP
$ 47.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 43.99 USD
Free Shipping on orders $49 and up


Genuine BMW Muffler Clamp - D=65Mm
This item fits the following BMW Chassis:
F22,F30,F32,F33,F34,F36

Fits BMW Engines including:
N26