BMW Downpipes for BMW 2 Series F22 (2014+)

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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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VRSF Downpipe Upgrade with Catalytic Converter - F22/23 F3X G30 B58 3...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
VRSF - Corporate Logo
T#:584901
Part#: 10582020
In Stock
$ 479.99 USD
Free Shipping
$ 479.99 USD
Free Shipping
Reduce back-pressure by upgrading the restrictive catalytic converter in the factory downpipe. Expect an increase in power as well as a more aggressive exhaust tone. This downpipe is handcrafted from 4.5" 304-grade stainless steel with smooth radius bends to decrease turbulence and flow. VRSF offers high-quality products at an exceptional value, including a 1-year limited warranty.
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VRSF Downpipe Upgrade - Performance High Flow Cat - Includes Hardware...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with production date after 08/13
Packaged by Turner - Corporate Logo
T#:2393346
Part#: 10302011HARDKT
In Stock
$ 595.99

This product was last offered at the strikethrough price on
12-23-2025

$ 580.99 USD
Free Shipping
$ 580.99 USD
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Reduce back-pressure by replacing the restrictive catalytic converter in the factory downpipe with a Performance high flow race cat. The high flow 200 cell race cat results in a faster spool, an increase in power, as well as a more aggressive exhaust tone. VRSF offers high quality products at an exceptional value. This Catless downpipe is handcrafted from SS304 grade stainless steel with smooth radius bends to decrease turbulence and flow. Made from hand crafted, tig welded 304 grade stainless steel. Smooth radius bends to decrease turbulence and increase flow. 200 cell high flow cat as well as catless options available. CNC SS304 stainless steel flanges. Gains from 20-25hp with tune. VRSF Lifetime Warranty
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Active Autowerke Catted Downpipe - F3X F22/23 F87 N55 3.0L
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Active Autowerke - Corporate Logo
T#:599319
Part#: 11-040-C
In Stock
$ 1,424.99 USD
Free Shipping
$ 1,424.99 USD
Free Shipping
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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Active Autowerke Aflow Catted Race Downpipe - BMW F3X F22/23 B58 3.0L...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
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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Active Autowerke GESI Catted Race Downpipe - BMW F3X F22/23 B58 3.0L ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
This Fits 2024 and Earlier Models Only!
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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VRSF Downpipe Upgrade - Performance High Flow Cat - N55
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat! For vehicles with production date after 08/13
VRSF - Corporate Logo
T#:584884
Part#: 10302011
In Stock
$ 479.99 USD
Free Shipping
$ 479.99 USD
Free Shipping
Reduce back-pressure by replacing the restrictive catalytic converter in the factory downpipe with a Performance high flow race cat. The high flow 200 cell race cat results in a faster spool, an increase in power, as well as a more aggressive exhaust tone. VRSF offers high quality products at an exceptional value. This Catless downpipe is handcrafted from SS304 grade stainless steel with smooth radius bends to decrease turbulence and flow.
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CTS Turbo High Flow Catted Downpipe
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
CTS - Corporate Logo
T#:18932307
Part#: EXH-DP-0037-CAT
Ships in 7 Business Days
$ 429.99 USD
Free Shipping
$ 429.99 USD
Free Shipping
The CTS Turbo High-Flow Cat for the BMW B46 is made to maximize exhaust flow for the highest power gains. Do not compromise performance and sound with factory parts – unleash your BMW’s potential! Designed using the latest in CAD technology; this part is made to fit perfectly in place of your factory downpipe. Manufactured from T304 stainless steel, hand TIG welded and back-purged to ensure years of reliable performance. Product Details: Precisely designed and tested on a real car in the real world T304 stainless steel, TIG welded back-purged construction Replaces restrictive factory downpipe with high-flow 200 cell catalytic converter Great power upgrade with uncompromising performance Incredible sporty exhaust sound, subtle when cruising No drone with factory exhaust The use of stage 2 software is strongly recommended to avoid the CEL from coming on.
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Active Autowerke Downpipe With G-Sport Cat - N20
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Active Autowerke - Corporate Logo
T#:5886981
Part#: 11-079
Ships in 3 Business Days
$ 1,424.99 USD
Free Shipping
$ 1,424.99 USD
Free Shipping
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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CTS High-Flow Catalytic Converter/Downpipe - N26
For vehicles equipped with an N26 engine
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
CTS - Corporate Logo
T#:27871827
Part#: CTSEXHDP0054CAT
Ships in 7 Business Days
$ 429.99 USD
Free Shipping
$ 429.99 USD
Free Shipping

The CTS Turbo High-Flow Cat for the BMW BN26 is made to maximize exhaust flow for the highest power gains. Do not compromise performance and sound with factory parts – unleash your BMW’s potential!

Precisely designed and tested on a real car in the real world T304 stainless steel, TIG welded back-purged construction Replaces restrictive factory downpipe with high-flow 200-cell catalytic converter Great power upgrade with uncompromising performance Incredible sporty exhaust sound, subtle when cruising No drone with factory exhaust Designed using the latest in CAD technology; this part is made to fit perfectly in place of your factory downpipe. Manufactured from T304 stainless steel, hand TIG welded and back-purged to ensure years of reliable performance.

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Wagner Downpipe With Sport Cat - N20 - F30 320i 328i, F32 428i F22 22...
For vehicles with the N20 engine only
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with the N20 engine only - will NOT work with the N26 SULEV Engines!
Wagner Tuning - Corporate Logo
T#:214370
Part#: 500001011
In Stock
$ 799.00 USD
$ 799.00 USD

This N20 downpipe feature larger piping and catalytic converter that are freer-flowing than the original cats for better flow and less backpressure. By removing exhaust restrictions the turbos can spool up faster which makes more boost sooner. With additional tuning, more power is available. There are downpipes that delete the primary cats and can leave the exhaust with a dirty and awful smell. These Wagner downpipes are built with a sport cat to keep the exhaust cleaner.Special software, or stand-alone engine management, may be required to keep emissions fault codes and check engine lights from appearing.

Features:

  • 200cpi Catalytic Converter
  • 100% perfect fit - CAD designed.
  • less thermal load on the turbocharger
  • more power by reducing back pressure
  • significantly more torque
  • Made from 1.4301 (SS304) Stainless Steel

     

This product modifies (but does not remove or defeat) emissions equipment. For this reason this product may not be CARB compliant, and therefore not emissions legal in some states. Consult local laws and regulations in your area. For more information on this product, feel free to contact our sales department.

 

This item fits the following BMWs:
2014+ F22 BMW 228i
10/2012+ F30 BMW 328i 328i xDrive 328xi - Sedan (with N20 engine; not for N26 SULEV engine)
2014+ F32 BMW 428i 428i xDrive 428xi - Coupe (with N20 engine; not for N26 SULEV engine)
Left Hand Drive ONLY

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CTS Turbo Catted Downpipe - All 1/2/3/4/5/6/7 Series B58
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
CTS - Corporate Logo
T#:589514
Part#: CTSEXHDP0024CAT
Ships in 7 Business Days
$ 459.99 USD
Free Shipping
$ 459.99 USD
Free Shipping
Maximizes exhaust flow for uncompromising performance.
CTS Turbo 4" High-Flow Cat - N55 Electronic Wastegate
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
CTS - Corporate Logo
T#:27472196
Part#: CTS-EXHDP0023CAT
Ships in 7 Business Days
$ 379.99 USD
Free Shipping
$ 379.99 USD
Free Shipping

Unleash the full potential of your BMW N55 (Electric Wastegate) with the CTS Turbo High-flow Cat, meticulously designed to optimize exhaust flow and deliver unmatched power gains. Bid farewell to factory constraints and welcome superior performance and enhanced sound!

Utilizing advanced CAD technology, this component seamlessly replaces your factory downpipe, ensuring a precise fit. Crafted from robust T304 stainless steel and expertly hand TIG welded with back purging, it ensures long-lasting and dependable performance.

Highlighted Features:

Precision-designed and rigorously tested for peak performance T304 stainless steel construction with TIG welded back-purged joints Direct replacement for the restrictive factory downpipe Substantial power increase without sacrificing performance Creates an exhilarating sporty exhaust sound while maintaining a refined tone during normal driving Eliminates drone typically found with factory exhaust setups Elevate your BMW N55's performance and sound with the CTS Turbo High-flow Cat, engineered for exceptional quality and outstanding performance on the road.

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Active Autowerke Catted Race Downpipe - BMW F22/23 F3X G20 B46 ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Active Autowerke - Corporate Logo
T#:638760
Part#: 11-065
Ships in 10 Business Days
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 B46 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

3 inch 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

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 in catalytic converter is furnace braised to the mantle for outstanding durability

GESi® proprietary precious metal loading technology ensures greatly reduced emissions

Both passengers and drivers are safe from harmful emissions and noise

Precise fitment

Made in Miami, Florida

Covered by 5 Year / 50,000 Mile Warranty (on shell and tube ends)

FITMENT NOTE: For G-Chassis models (G20, G22), the cutoff build date of 08/2020 is important as cars produced after that date have a downpipe with different bracket locations. Cars with a build date of 08/2020 and earlier have the brackets in a V configuration. Cars with a build date of 09/2020 and later have the brackets in a straight line and require Active Autowerke p/n 11-065G

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Supersprint Turbo Downpipe - 100-Cell Metallic Sport Cat (118mm Inlet...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Supersprint - Corporate Logo
T#:193548
Part#: 988621
Ships in 3 Business Days
$ 2,695.99 USD
Free Shipping
$ 2,695.99 USD
Free Shipping
Free ground shipping! The factory 235/335/435 N55 exhaust system is pretty wide open with minimal restrictions - except for the catalytic converter. The factory cat is the biggest restriction so any exhaust work to gain more power is going to have to involve replacing it with something freer-flowing. Supersprint's downpipe incorporates a ultra high-flow HJS 100-cell metallic cat that flows considerably more than the stock ceramic part. It also uses bigger 80mm piping to minimize restrictions. Supersprint exhaust is widely recognized as the leader in complete exhaust system upgrades - extremely high quality, well designed for optimal flow, and amazing sound. Even at a premium price Supersprint is an unbeatable exhaust system because every aspect is done to such a high level. A Supersprint exhaust rewards you with a terrific sound, long lasting construction and excellent fitment. The Supersprint sound is very 'European' which fits the sporting sophistication of BMWs perfectly. Most systems are also modular - sections can be added or removed to custom tailor the exhaust sound to your preferance. Aside from 'Race' systems, their mufflers meet European noise laws so you get a refined and tuned sound without being excessively loud. Most Supersprint systems are built with larger diameter piping to improve exhaust flow which helps the engine do less work and make more horsepower! Supersprint exhausts generally run at a premium over other systems but no other system on the market can match their quality, performance, or reputation! Supersprint metallic sport catalytic converters are sourced from HJS of Germany. For 30 years HJS has been supplying motorsports teams with sport cats when rules required them. HJS is now a worldwide leader in sport cat technology and performance. Rally cars, German DTM, and Formula 3 all rely on HJS for clean, reliable horsepower. Supersprint works closely with HJS to spec a catalytic converter that is correct for the vehicle and engine package. This allows for a substantial increase in flow but which, at the same time, keeps the environmental specs within European limits. With any high-flow catalytic converter, special software or other work may be required to keep emissions fault codes and check engine lights from displaying. Supersprint catalytic converters are sold for track and other off-road uses only. 100-cell cats have 100 honeycomb cells per square inch. While still cleansing the exhaust somewhat this is basically a straight-through exhaust. Dyno (M135i): +28hp / +17ft-lbs Supersprint downpipe with sport cat section 1, section 2 straight pipes performance muffler ​This product modifies (but does not remove or defeat) emissions equipment. For this reason this product may not be CARB compliant, and therefore not emissions legal in some states. Consult local laws and regulations in your area. For more information on this product, feel free to contact our sales department.
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Wagner Downpipe With 300CPSI Sport Cat - N55 - F30 335i, F32 435i F22...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Wagner Tuning - Corporate Logo
T#:214368
Part#: 500001013
Ships in 1 Business Day
$ 899.00 USD
$ 899.00 USD
These N55 downpipes feature larger piping and catalytic converter that are freer-flowing than the original cats for better flow and less backpressure. By removing exhaust restrictions the turbos can spool up faster which makes more boost sooner. With additional tuning, more power is available. There are downpipes that delete the primary cats and can leave the exhaust with a dirty and awful smell. These Wagner downpipes are built with a sport cat to keep the exhaust cleaner.Special software, or stand-alone engine management, will be required to keep emissions fault codes and check engine lights from appearing. Features: 300cpi Catalytic Converter 100% perfect fit - CAD designed - Replaces BMW # 18328602882 less thermal load on the turbocharger more power by reducing back pressure significantly more torque Made from 1.4301 (SS304) Stainless Steel
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High Flow 200 Cell Catted Downpipe - F Series B58
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Wagner Tuning - Corporate Logo
T#:587591
Part#: 500001027
Ships in 1 Business Day
$ 1,090.00 USD
Free Shipping on orders $49 and up
A higher flowing catalytic substrate for dramatically improved throttle response and torque.

VRSF Replacement Chargepipe Methanol/Water Injection Bung Plug for 07...
Fits N54/ N55/ N20/ N26/ S55/ B58 Engines from 2007-2016
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
VRSF - Corporate Logo
T#:35154903
Part#: 504010
In Stock
$ 8.99 USD
Free Shipping on orders $49 and up
$ 8.99 USD
Free Shipping on orders $49 and up

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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Downpipe To Cat-Back Reducer - Priced Each
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
ECS - Corporate Logo
T#:22427013
Part#: 006555ECS06B
In Stock
Sale - Save 40% $ 38.99

This product was last offered at the strikethrough price on
05-03-2026

$ 23.39 USD
Free Shipping on orders $49 and up
Sale - Save 40%
$ 38.99

This product was last offered at the strikethrough price on
05-03-2026

$ 23.39 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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034Motorsport Stainless Steel Racing Catalyst/Downpipe
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
034Motorsport - Corporate Logo
T#:26771743
Part#: 034-105-4051
Ships in 2 Business Days
$ 1,158.00 USD
Free Shipping
$ 1,158.00 USD
Free Shipping
The 034Motorsport Stainless Steel Racing Catalyst is purpose-built to replace the restrictive factory catalytic converter in BMW F2x/F3x B58 vehicles. With this downpipe installed, drivers can expect significant gains in horsepower and torque throughout the powerband. Additionally, turbocharger lag is reduced, throttle response is improved, and the exhaust note is enhanced for a more aggressive tone. By eliminating the primary bottleneck in the stock exhaust system, this upgrade allows owners to fully unlock the potential of their turbocharged engines.
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Downpipe with Sport Catalytic Converter - 200 CPI
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Supersprint - Corporate Logo
T#:393674
Part#: 524241
Ships on Sep 4, 2026
$ 2,940.00 USD
Free Shipping
$ 2,940.00 USD
Free Shipping

Supersprint Turbo Downpipe - 200-Cell Metallic Sport Cat (118mm Inlet...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Supersprint - Corporate Logo
T#:387927
Part#: 988641
Ships in 3 Business Days
$ 3,122.99 USD
Free Shipping
$ 3,122.99 USD
Free Shipping
Free ground shipping! The factory 235/335/435 N55 exhaust system is pretty wide open with minimal restrictions - except for the catalytic converter. The factory cat is the biggest restriction so any exhaust work to gain more power is going to have to involve replacing it with something freer-flowing. Supersprint's downpipe incorporates a ultra high-flow HJS 200-cell metallic cat that flows considerably more than the stock ceramic part. It also uses bigger 80mm piping to minimize restrictions. Supersprint exhaust is widely recognized as the leader in complete exhaust system upgrades - extremely high quality, well designed for optimal flow, and amazing sound. Even at a premium price Supersprint is an unbeatable exhaust system because every aspect is done to such a high level. A Supersprint exhaust rewards you with a terrific sound, long lasting construction and excellent fitment. The Supersprint sound is very 'European' which fits the sporting sophistication of BMWs perfectly. Most systems are also modular - sections can be added or removed to custom tailor the exhaust sound to your preferance. Aside from 'Race' systems, their mufflers meet European noise laws so you get a refined and tuned sound without being excessively loud. Most Supersprint systems are built with larger diameter piping to improve exhaust flow which helps the engine do less work and make more horsepower! Supersprint exhausts generally run at a premium over other systems but no other system on the market can match their quality, performance, or reputation! Supersprint metallic sport catalytic converters are sourced from HJS of Germany. For 30 years HJS has been supplying motorsports teams with sport cats when rules required them. HJS is now a worldwide leader in sport cat technology and performance. Rally cars, German DTM, and Formula 3 all rely on HJS for clean, reliable horsepower. Supersprint works closely with HJS to spec a catalytic converter that is correct for the vehicle and engine package. This allows for a substantial increase in flow but which, at the same time, keeps the environmental specs within European limits. With any high-flow catalytic converter, special software or other work may be required to keep emissions fault codes and check engine lights from displaying. Supersprint catalytic converters are sold for track and other off-road uses only. 200-cell cats have 200 honeycomb cells per square inch. This is much better flow than stock but still does a good job of cleansing the exhaust. Dyno (M135i): +28hp / +17ft-lbs Supersprint downpipe with sport cat section 1, section 2 straight pipes performance muffler This product modifies (but does not remove or defeat) emissions equipment. For this reason this product may not be CARB compliant, and therefore not emissions legal in some states. Consult local laws and regulations in your area. For more information on this product, feel free to contact our sales department.
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Hi-Flow Sports Catted Downpipes - B58
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Milltek Sport - Corporate Logo
T#:591396
Part#: SSXBM1039
Ships in 3 Business Days
$ 2,935.99 USD
Free Shipping
$ 2,935.99 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 with High-flow Race Catalytic Converter
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Supersprint - Corporate Logo
T#:584221
Part#: 524221
Ships in 3 Business Days
$ 2,460.00 USD
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$ 2,460.00 USD
Free Shipping
This Supersprint downpipe is designed to be a plug&play upgrade replacing the stock down pipe without any modification. Supersprint exhaust is widely recognized as the leader in complete exhaust system upgrades - extremely high quality, well designed for optimal flow, and amazing sound. Even at a premium price Supersprint is an unbeatable exhaust system because every aspect is done to such a high level. A Supersprint exhaust rewards you with a terrific sound, long lasting construction and excellent fitment. The Supersprint sound is very 'European' which fits the sporting sophistication of BMWs perfectly. Most systems are also modular - sections can be added or removed to custom tailor the exhaust sound to your preference. Aside from 'Race' systems, their mufflers meet European noise laws so you get a refined and tuned sound without being excessively loud. Most Supersprint systems are built with larger diameter piping to improve exhaust flow which helps the engine do less work and make more horsepower! Supersprint exhausts generally run at a premium over other systems but no other system on the market can match their quality, performance, or reputation!
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Hi-Flow Sports Catted Downpipes - F22/F87
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Milltek Sport - Corporate Logo
T#:591403
Part#: SSXBM1037
Ships in 3 Business Days
$ 2,876.99 USD
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$ 2,876.99 USD
Free Shipping
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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Evolution Raceworks Sports Series 4" High Flow Catted Downpipe -...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Evolution Racewerks - Corporate Logo
T#:29267518
Part#: BM-EXH019CAT
Ships in 8 Business Days
$ 895.00 USD
Free Shipping on orders $49 and up

Crafted to enhance the exhaust flow of your B46-equipped BMW, this downpipe is equipped with a 200-cell high-flow catalytic converter and mandrel bent 4" piping. With a sleek brushed steel finish, this downpipe is constructed entirely from 100% stainless steel and TIG-welded for ultimate durability, surpassing the factory catalyst.

Key Features:

1. Elevated initial torque curve 2. Enhanced throttle response and quicker turbocharger spooling 3. Precisely CNC machined turbocharger V-band flange 4. Maintains the factory "ball-type" v-band connector 5. Compatible with both factory and aftermarket exhaust systems 6. Tested for durability on the track 7. Proudly made in the USA

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F22 228i, F30/F31/F34 328i, F32 428i Supersprint Turbo Downpipe with ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Supersprint - Corporate Logo
T#:184388
Part#: 987321
Ships in 3 Business Days
$ 2,010.00 USD
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$ 2,010.00 USD
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XForce Downpipe Kit - BMW F22 M235i
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
XForce - Corporate Logo
T#:50934838
Part#: ESBM118KITB
Ships in 2 Business Days
New Item
$ 585.00 USD
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Provides a cleaner, more efficient exit for exhaust gases, reducing under-hood heat and improving overall engine health.

Racing Dynamics Catted Downpipe
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Racing Dynamics - Corporate Logo
T#:20386743
Part#: 1301055560
Ships in 6 Business Days
$ 890.00 USD
Free Shipping on orders $49 and up
$ 890.00 USD
Free Shipping on orders $49 and up
Catted downpipe with heat shield for BMW M135i/M235i/335i/435i/M2 F87 model with the 3.0 liter turbocharged N55 straight 6 motor from 2015-2018. Eliminates the largest restriction in your exhaust with a 200 cell sport cat. Large input flange with 4" mandrel bent downpipe manufactured out of 304 stainless steel, TIG welded with brushed finish. For left & right hand drive models! Features: Large 4 1/2" inlet flange, 4" tubing and straight-through design allows for maximum power and sound. Heat Shield to funnel the heat out the exhaust and lower temperature in engine compartment. Heat shield is used to protect surrounding parts, wires, and hoses against radiant heat from the downpipes, Integrated thermal insulation reduces surface temperature up to 70% Straight-through tubing section replaces the heavy and restrictive OEM catalytic converters for maximum power and sound Improves horsepower and torque significantly. Approximately 20 HP with a tune. Downpipe includes a 200 cell sport catalytic converter for a cleaner environment Direct bolt-on replacement for OEM primary catalytic converters Less thermal load on the turbocharger Reduces turbo lag Applications: BMW M135i N55 F20 2014-18 BMW M235i N55 F22 2014-18 BMW 335i N55 F30/F31/F34 2014-18 BMW 435i N55 F32 2014-18 BMW M2 N55 F87 2014-21
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Akrapovic Catted Downpipe Upgrade - B58
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Akrapovic - Corporate Logo
T#:2617093
Part#: DP-BM/SS/5/H
Back Ordered
$ 2,898.99 USD
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$ 2,898.99 USD
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Delivering great sound, without creating unwanted cabin noise, these beautifully-crafted downpipes offer an upgrade to Akrapovič’s Evolution exhaust system.
VRSF Downpipe Upgrade with Catalytic Converter & Heat Shield - F2...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
VRSF - Corporate Logo
T#:42369337
Part#: 10582028
Back Ordered
$ 579.99 USD
Free Shipping
$ 579.99 USD
Free Shipping
Reduce back-pressure by upgrading the restrictive catalytic converter in the factory downpipe. Expect an increase in power as well as a more aggressive exhaust tone. This downpipe is handcrafted from 4.5" 304-grade stainless steel with smooth radius bends to decrease turbulence and flow. VRSF offers high-quality products at an exceptional value, including a 1-year limited warranty.
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