BMW Downpipes for BMW 3 Series F34 (2014+)

Clear BMW chassis

Please ensure your correct model is selected

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!
Sort By:

Active Autowerke - Corporate Logo
T#:40004859
Part#: 11-062A
Ships in 10 Business Days
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
Show More Show Less
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
Show More Show Less
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.
Show More Show Less

BMW N26 Sports Series 4" High Flow Catted Downpipe
For vehicles with the N26 SULEV engine only - will NOT work with the N20 Engines!
Evolution Racewerks - Corporate Logo
T#:597064
Part#: BM-EXH010CAT
Ships in 8 Business Days
$ 895.00 USD
Free Shipping
$ 895.00 USD
Free Shipping
High Flow 200 Cell Metallic Catted Downpipes from Evolution Racewerks for your N26 BMW engine

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 High-Flow Catalytic Converter/Downpipe - N26
For vehicles equipped with an N26 engine
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.

Show More Show Less

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

Show More Show Less
Evolution Racewerks - Corporate Logo
T#:558983
Part#: BMEXH018C
Ships in 8 Business Days
Starting at $ 945.00 USD
Free Shipping
Starting at $ 945.00 USD
Free Shipping

Want to install a downpipe on your B58 equipped BMW, but still need to pass emissions? Evolution Racewerks has the answer for you with their B58 Catted downpipe. The Evolution Racewerks Competition Series Catless Downpipes is constructed from 304 stainless steel, featuring mandrel bent piping.  These are 100% TIG welded by in house fabricators and built in the USA! 

The factory turbocharger turbine housing utilizes a V-Band flange which has been duplicated and CNC machined cut out of billet 304 stainless steel. Stainless Steel CNC machined O2 sensor and laser cut brackets are TIG welded using stainless steel rods. The O2 sensor remains positioned at the factory location. Also, since Evolution Racewerks uses a larger 4.5" pipe right after the turbocharger, turbo backpressure is significantly reduced, resulting in less exhaust turbulence and backpressure which again improves throttle response and decreasing turbo lag.

Show More Show Less

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.
Show More Show Less

Supersprint - Corporate Logo
T#:393674
Part#: 524241
Ships on Dec 18, 2026
$ 3,372.99 USD
Free Shipping
$ 3,372.99 USD
Free Shipping
034Motorsport Stainless Steel Racing Catalyst/Downpipe
2X Entries Into Our F80 M3 Sweepstakes
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.
Show More Show Less
Supersprint - Corporate Logo
T#:184388
Part#: 987321
Ships in 3 Business Days
$ 2,295.00 USD
Free Shipping
$ 2,295.00 USD
Free Shipping