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Active Autowerke G90 M5 Catback Exhaust System, BMW S68

Mon, 9 Feb 2026 14:59:33 GMT

Active Autowerke G90 M5 Catback Exhaust System, BMW S68
Buy Now: $4,499.00

Transform the performance and sound of your 2025+ BMW G90 M5 with our premium T304 stainless steel valved full exhaust system. Purpose-built for the S68 4.4L twin-turbo V8, this system is engineered to enhance exhaust flow, reduce backpressure, and deliver a deep, aggressive tone--without compromising daily drivability.

Designed using advanced techniques for a precise OEM-fit, this exhaust system integrates seamlessly with all factory mounting points and adds exhaust valve control which is missing from the OEM exhaust system. Whether cruising or pushing the limits, this system provides an immersive and exhilarating exhaust experience.

Key Highlights:

T304 Stainless Steel Construction: Built entirely from corrosion-resistant, mandrel-bent T304 stainless steel, this system offers long-term durability, heat resistance, and a consistent finish. Welded with precision using TIG methods to ensure structural integrity and leak-free performance under high-load conditions.

Remote control Exhaust Valves: Adds an electronic valve system controlled by a remote to replace the missing exhaust valves BMW did not provide with the stock exhaust. Provides a quiet, subdued tone in comfort modes and an aggressive, open-valve growl in dynamic settings--no tuning or coding required.

High-Flow X-Pipe Midsection: Centralized X-pipe balances exhaust pulses between banks, improving scavenging and enhancing the natural V8 rhythm. Reduces unwanted drone and enhances top-end acoustics under throttle.

Performance-Oriented Flow Path: Oversized and optimized 3.5" (89mm) piping diameter ensures efficient flow, minimizes turbulence, and maximizes power delivery throughout the rev range. Estimated gains of +18-22 hp and +20-25 lb-ft torque (with optional EPA catted downpipes).

Optional High-Flow Catted Downpipes: Available as an upgrade, our 400-cell GESI catalytic converters maintain emissions compliance (region-dependent) while increasing turbo efficiency and reducing spool time. CNC-machined flanges and heat shielding ensure fitment and thermal control.

Sound Engineering: Precision-tuned for a refined cold start, deep idle rumble, and aggressive throttle response. The system delivers a clean, motorsport-inspired tone without unwanted cabin drone--ideal for both spirited driving and long highway trips.

Quad 112mm Exhaust Tips (Multiple Finishes): Choose from brushed stainless, matte black or carbon fiber quad tips to match your M5's styling. Dual-wall design resists heat discoloration and adds a premium finish to the rear profile.

Direct Bolt-On Installation: No cutting, welding, or modification required. Includes all clamps, gaskets, valve motor brackets, valve motors with remotes and hardware. Fully reversible for lease or resale.

Specifications:

Material: T304 Stainless Steel

Tubing Diameter: 3.5" (89mm) from downpipes to rear exhaust

Valves: Electronic remote control plug-and-play

Weight Reduction: ~10-12 lbs vs. OEM system

Tip Diameter: 112mm (quad outlet)

Fitment: BMW G90 M5 (2025+) / G99 M5 Touring

Why Choose This Exhaust System?

This full stainless system offers the perfect balance of durability, sound tuning, and performance gains--without sacrificing luxury or OEM integration. Ideal for enthusiasts looking for a visceral exhaust experience with the peace of mind of factory compatibility and high-quality materials.

Unlock the full potential of your G90 M5. Let it breathe, let it roar.

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Fabspeed Valvetronic Exhaust System, BMW G80/G82 M3/M4

Mon, 30 Jan 2023 11:56:55 GMT

Fabspeed Valvetronic Exhaust System, BMW G80/G82 M3/M4
Buy Now: $6,651.95

The Fabspeed BMW M3 & M4 Valvetronic Exhaust System offers a superb “plug and play” upgrade to the restrictive and quiet OEM exhaust. Adding a significant increase in tone, volume, and power. We use Helical valves imported directly from the U.K. to eliminate any risk of valve failure that plague many other options on the market with low quality exhaust valves.

Sound:

The Fabspeed Motorsport Valvetronic Exhaust System relieves you of the subtle OEM sound and gives you the volume and tone that’s missing from the factory system. With a slight increase in volume on the throttle and a nice burble at idle, this is the perfect “grand touring” M3/M4 exhaust system. Downshift pops and bangs in sport mode are louder, but not obnoxiously so. This system has no drone at all cruising around town or on the highway.

Features:
- Fits all BMW M3 & M4 (G80/G82) sedan/coupe vehicles worldwide (2020+) (RWD & AWD)

- Constructed from CNC mandrel-bent 14-16 gauge T304L stainless steel

- Laser scanned and CAD designed for perfect OEM fitment using Ametek Handyscan 700

- This cat-back system is emissions legal in all 50 states and the rest of the world (ROW)

- Uses aerospace quality Helical Limited exhaust valves imported from the U.K.

- No CEL (Check Engine Light) guaranteed

- Saves 3lbs / 1.4KGs compared to the factory system

- Includes Deluxe Quad-Style Tips in your choice of finish

- Retains factory valve functionality for “plug and play” installation

- All Fabspeed performance products are backed by the Fabspeed Lifetime Warranty

NOTE: Minor cutting at factory exhaust breakpoint required to install (Reference Dimple Locations on OEM)

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Active Autowerke Catted Downpipes, BMW S58 X3M/X4M

Fri, 1 Apr 2022 10:45:53 GMT

Active Autowerke Catted Downpipes, BMW S58 X3M/X4M
Buy Now: $2,999.95

ACTIVE AUTOWERKE BMW X3M S58 DOWNPIPES

BMW introduced a new valvetronic, single turbo version of its direct-injection engine for the later F-Chassis models beginning in 2016 and continues into the G-Chassis models - the evolution to the S58 engine continues with the twin turbo variant used in the M-series vehicles. The Active Autowerke S58 downpipes for the X3M and X4M helps unleash some of the potential that is restricted by the OEM downpipes.

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 S58 is a bit restrictive, which results in slower exhaust gases and slower turbo spool.

The Active Autowerke X3M/X4M S58 Signature down pipe utilizes 3 inch diameter stainless steel piping in order to provide more power, quicker spool, and extreme durability. Active has incorporated stainless flex joints and then down to 70mm to meet the OEM exhaust system. They never drop the diameter to smaller than the stock diameter of 70mm.

This variant includes a pair of 4.5" high flow GESI catalytic converters 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 registered and compliant in 49 states and fully OBD2 compliant, perfect for use on 1996 and newer vehicles. 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.

NOTE: Federal law prohibits the tampering of an emissions control device. Mobile Source Enforcement Memorandum 1A, allows for aftermarket parts to be used in the repair or replacement of emissions control systems, provided the emissions aren't adversely affected. There is no mention or reference to cell density or converter volume dimension. The GESI catalytic converter will produce emissions that will meet or exceed the standards set by the EPA, not CARB.

FEATURES:

NO CEL when using these downpipes

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 2013 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

GESI proprietary precious metal loading technology ensures greatly reduced emissions

Ideal for Forced Induction Applications with no loss of HP

Both passengers and drivers are safe from harmful emissions and noise

Covered by 5 Year / 50,000 Mile Warranty (on catalytic converter)

Made in Miami, Florida

ACTIVE AUTOWERKE S58 SIGNATURE DOWNPIPES 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 downpipes, your S58 can rev quicker, and deliver more horsepower and torque.

Minimizing back pressure while retaining daily drive-ability was the goal of our S58 downpipes. 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 inch diameter pipe which utilizes the least number of bends possible. The large volume helps the turbo spool as quickly as possible by eliminating back pressure during spool up.

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 S58!

Visit Exhaust Systems to see additional products in this category.

Active Autowerke Downpipe Exhaust Upgrade, BMW S58 F97/F98 X3M/X4M

Fri, 1 Apr 2022 10:24:16 GMT

Active Autowerke Downpipe Exhaust Upgrade, BMW S58 F97/F98 X3M/X4M
Buy Now: $1,499.95

The Active Autowerke X3M/X4M S58 Signature down pipe utilizes 3 inch diameter stainless steel piping in order to provide more power, quicker spool, and extreme durability. Active Autowerke incorporated stainless flex joints and then down to 70mm to meet the OEM exhaust system. Active Autowerke never drops the diameter to smaller than the stock diameter of 70mm.

FEATURES:

Designed to be as unrestrictive as possible

3 inch diameter piping allows for maximum power output

Quicker turbo spool

Easily bolts-on u2013 no cutting or welding required

Durable construction from TIG welded 304 stainless steel

Precise fitment

Made in Miami, Florida

ACTIVE AUTOWERKE S58 SIGNATURE DOWNPIPE BENEFITS

Minimizing back pressure while retaining daily drive-ability was the goal of our S58 downpipes. Owners can now upgrade to a product that is affordable, reliable, and easy to install. Note: Because these down pipes modify the factory emissions system it is designed for off-road or racing use only.

NOTE:

FITS S58 VEHICLE X3M and X4M

THIS DOWNPIPE SYSTEM IS DESIGNED FOR OFF ROAD AND RACING APPLICATIONS ONLY.

BMW S58 WITH THESE DOWNPIPES WILL THROW A CEL WITHOUT AN ACTIVE AUTOWERKE SOFTWARE UPGRADE FOR OFF-ROAD USE ONLY.

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Active Autowerke Downpipe Exhaust Upgrade, BMW N55

Fri, 1 Apr 2022 10:14:14 GMT

Active Autowerke Downpipe Exhaust Upgrade, BMW N55
Buy Now: $399.95

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.

FEATURES:

Designed to be as unrestrictive as possible

3.50" diameter piping allows for maximum power output

Quicker turbo spool

Easily bolts-on u2013 no cutting or welding required

Durable construction from 304 stainless steel

Precise fitment

Modular design for later upgrades

ACTIVE AUTOWERKE N55 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 N55 can rev quicker, and deliver more horsepower and torque.

Minimizing back pressure while remaining daily drive-ability was the goal of our N55 downpipe. Owners can now upgrade to a product that is affordable, reliable, and easy to install. Note: Because this down pipe modifies the factory emissions system it is designed for off-road or racing use only.

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 N55 down pipe still fits easily into the OEM location, with a painless installation process.

NOTE:

FITS ALL F-CHASSIS N55 CARS FROM 09/2013 UP ONLY

THIS DOWNPIPE SYSTEM IS DESIGNED FOR OFF ROAD AND RACING APPLICATIONS ONLY.

BMW N55 WITH THIS DOWNPIPE WILL THROW A CEL WITHOUT AN ACTIVE AUTOWERKE SOFTWARE UPGRADE FOR OFF-ROAD USE ONLY.

**This product is a part of the Active Autowerke Motorsport Collection. It is for RACE and OFF-ROAD USE ONLY!

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Active Autowerke Catted Downpipes, BMW S63TU F90 M5

Wed, 24 Nov 2021 06:30:52 GMT

Active Autowerke Catted Downpipes, BMW S63TU F90 M5
Buy Now: $2,999.95

The S63TU downpipes are strategically engineered to virtually eliminate the immensely restrictive characteristics of the factory M5 downpipes therefore reducing radiant heat and increasing performance. Our M5 downpipes will significantly increase horsepower and torque throughout the powerband. They will reduce any turbo lag

Active's F90 M5 downpipes are manufactured in house using 304 stainless steel. Each set is meticulously tig welded and checked for perfect fitment. The design uses a factory matched 3.5" v-band inlet that tapers to a high flowing, mandrel bent" body and includes the lower section sold by others as a "mid-pipe."

**Our downpipes allow the use of the OEM O2 sensor heat shield. With the heat shield installed the engine bay remains stock-looking for a sleeper look!

This variant includes a pair of 4.5" high flow GESI catalytic converters 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 registered and compliant in 49 states and fully OBD2 compliant, perfect for use on 1996 and newer vehicles. 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.

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.

Features:

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

Accepts OEM O2 sensor heat shield

Durable construction from TIG welded 304 stainless steel

Precise fitment

Ultra high flow 400 cell per square inch catalyst

EPA compliant for use on OBD2 vehicles (1996 and newer) except in California

304 stainless steel substrate is furnace braised to the mantle for outstanding durability

GESi proprietary precious metal loading technology ensures greatly reduced emissions

Ideal for Forced Induction Applications with no loss of HP

Both passengers and drivers are safe from harmful emissions and noise

Covered by 5 Year / 50,000 Mile Warranty (on catalytic converter)

Made in Miami, Florida

Visit Exhaust Systems to see additional products in this category.

Active Autowerke Catted Downpipes, BMW S55

Wed, 24 Nov 2021 06:10:52 GMT

Active Autowerke Catted Downpipes, BMW S55
Buy Now: $2,999.95

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 newest addition to our BMW F87 M2C, F80 M3 and F82 M4 Collection, these F8X catted downpipes are a true testament to our outlook on creating innovative products with performance in mind. Developed for precise fitment on the F87 M2C, F80 M3 and F82 BMW M4, the difference in performance will be noticeable the moment you leave your driveway!

This variant includes a pair of 4" ultra high flow GESI catalytic converters (Gen 2 Advanced) 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 registered and compliant in 49 states and fully OBD2 compliant, perfect for use on 1996 and newer vehicles. GESI proprietary precious metal loading technology ensures greatly reduced emissions, eliminating most "Check Engine Lights". These ultra 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 ultra 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.

NOTE: Federal law prohibits the tampering of an emissions control device. u00a0Mobile Source Enforcement Memorandum 1A, allows for aftermarket parts to be used in the repair or replacement of emissions control systems, provided the emissions are not adversely affected. There is no mention or reference to cell density or converter volume dimension. The GESI catalytic converter will produce emissions that will meet the standards set by the EPA, not CARB.

Features:

NO CEL when using this downpipe

Quicker turbo spool and response

Less restrictive, more free flowing

Improved low end and mid range performance as well as higher boost levels

GESI EPA registered high flow and fully OBD2 compliant

Casted upper stainless steel V-Band for precise fitment

Withstands up to 1500F

Can reach operational efficiency within 9 seconds of startup

Easily bolts-on with no cutting or welding required

Accepts OEM O2 sensor heat shield

Durable construction from TIG welded 304 stainless steel

Precise fitment

Ultra high flow 400 cell per square inch catalyst

EPA compliant for use on OBD2 vehicles (1996 and newer) except in California

304 stainless steel substrate is furnace braised to the mantle for outstanding durability

GESI proprietary precious metal loading technology ensures greatly reduced emissions

Ideal for Forced Induction Applications with no loss of HP

Both passengers and drivers are safe from harmful emissions and noise

Covered by 5 Year / 50,000 Mile Warranty (on catalytic converter)

Made in Miami, Florida

Visit Exhaust Systems to see additional products in this category.

Active Autowerke Catted Downpipes, BMW N63/S63

Wed, 24 Nov 2021 05:47:50 GMT

Active Autowerke Catted Downpipes, BMW N63/S63
Buy Now: $2,999.95

Active Autowerke is proud to bring you their hand made Signature S63/N63 Downpipes for the twin-turbo V8 BMW X5M, X6M, 550i, 650i, X5, X6 models. Please note that G-body vehicles with the N63B engine will need a different version of the downpipe - if you are buying a downpipe that also fits the F body cars, it will not fit your vehicle - Active is always doing R&D to ensure that you get a product with the proper fit.

A turbo impeller wheel speed is mostly limited by the exhaust back pressure within the system. If one could eliminate some or most of this exhaust back pressure, the turbo will spool that much faster and effortlessly resulting in quicker engine revs and increased HP. The Active Autowerke Signature down pipes are designed with the intent to maximize power. These down pipes are created with the least amount of restrictions possible by utilizing a full 3" piping throughout with the least amount of bends possible. What you will experience is a faster, more responsive engine because the turbo impeller now has the ability to spool that much faster. The end result is more power. Made from 304 stainless steel the handmade construction process ensures a robust and durable exhaust that will provide trouble free performance with the longevity to match.

This variant includes a pair of 4.5" ultra 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 registered and compliant for 49 states and fully OBD2 compliant, perfect for use on 1996 and newer vehicles. 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.

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.

****PLEASE PROVIDE VIN # TO ASSURE ACCURACY ***

MAY TAKE UP TO 2 WEEKs BEFORE SHIPPING AS THEY ARE CUSTOM MADE IN-HOUSE.

FEATURES:

NO CEL when using this downpipe

GESI EPA registered high flow and fully OBD2 compliant

Casted upper stainless steel V-Band for precise fitment

Full 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

Precise fitment

Ultra high flow 400 cell per square inch catalyst

EPA compliant for use on OBD2 vehicles (1996 and newer) except in California

304 stainless steel substrate is furnace braised to the mantle for outstanding durability

GESi proprietary precious metal loading technology ensures greatly reduced emissions

Ideal for Forced Induction Applications with no loss of HP

Both passengers and drivers are safe from harmful emissions and noise

Covered by 5 Year / 50,000 Mile Warranty (on catalytic converter)

Made in Miami, Florida

Visit Exhaust Systems to see additional products in this category.

Active Autowerke Catted Downpipes, BMW S58 G80/G82

Wed, 24 Nov 2021 05:35:39 GMT

Active Autowerke Catted Downpipes, BMW S58 G80/G82
Buy Now: $2,999.95

Active Autowerke is proud to release the advanced Active Autowerke Signature Catted Downpipes with GESI G-Sport cats for the BMW G80 M3 and G82 M4. While these cars have received rave reviews for their performance, the sound is a muffled one leaving the driver to wonder if they are really driving a BMW M-car. In order to solve this, Active Autowerke has created a full exhaust system for the G80/G82 which comprises this mid-pipe, a rear axle-back valved exhaust and a set of GESI catted downpipes. Together, this remake of the stock exhaust results in a G80/G82 with an amazing sound. You will feel like you are driving a true M-car again.

BMW introduced a new valvetronic, single turbo version of its direct-injection engine for the later F-Chassis models beginning in 2016 and continues into the G-Chassis models - the evolution to the S58 engine continues with the twin turbo variant used in the M-series vehicles. The Active Autowerke S58 downpipes for the G80 M3 and G82 M4 helps unleash some of the potential that is restricted by the OEM downpipes.

The Active Autowerke G80/G82 S58 Signature down pipe utilizes 3 inch diameter stainless steel piping in order to provide more power, quicker spool, and extreme durability. We've incorporated stainless flex joints and then down to 70mm to meet the OEM exhaust system. We never drop the diameter to smaller than the stock diameter of 70mm.

This variant includes a pair of 4.5" ultra high flow GESI catalytic converters 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 registered and compliant in 49 states and fully OBD2 compliant, perfect for use on 1996 and newer vehicles. 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.

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.

FEATURES:

NO CEL when using these downpipes

GESI EPA registered high flow and fully OBD2 compliant

The most advanced cats produced by GESI today

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 per cat

Withstands up to 1500 F

Can reach operational efficiency within 9 seconds of startup

Easily bolts-on 2013 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

GESI proprietary precious metal loading technology ensures greatly reduced emissions

Ideal for Forced Induction Applications with no loss of HP

Both passengers and drivers are safe from harmful emissions and noise

Covered by 5 Year / 50,000 Mile Warranty (on catalytic converter)

Made in Miami, Florida

ACTIVE AUTOWERKE S58 SIGNATURE DOWNPIPES BENEFITS

Minimizing back pressure while retaining daily drive-ability was the goal of our S58 downpipes. Owners can now upgrade to a product that is affordable, reliable, and easy to install.

NOTE:

FITS S58 VEHICLE G80 M3 and G82 M4

Visit Exhaust Systems to see additional products in this category.

Active Autowerke Catted Downpipes, BMW B46

Tue, 23 Nov 2021 13:48:16 GMT

Active Autowerke Catted Downpipes, BMW B46
Buy Now: $1,499.95

BMW introduced a new valve-tronic, single turbo version of its direct-injection engine for the later F-Chassis models beginning in 2016 and continuing into the G-chassis models. The Active Autowerke B46 downpipe for the 230i, 330i and 430 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 B46 is quite restrictive, which results in slower exhaust gases and slower turbo spool.

The Active Autowerke F-Chassis B46 Signature down pipe utilizes 3-1/2 inch diameter stainless steel piping in order to provide more power, quicker spool, and extreme durability. We've incorporated a stainless flex joint and then to the ball flare to meet the OEM exhaust system.

This variant includes a 4" 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 registered and compliant in 49 states and fully OBD2 compliant, perfect for use on 1996 and newer vehicles. 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 300 and 500 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.

Features:

NO CEL when using this downpipe

GESI EPA registered high flow and fully OBD2 compliant

Casted upper stainless steel V-Band for precise fitment

3-1/2 inch diameter piping allows for maximum power output

Quicker turbo spool

Rated for 300 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

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 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)

ACTIVE AUTOWERKE B46 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 Autowerkeu's downpipe, your B46 can rev quicker, and deliver more horsepower and torque.

Minimizing back pressure while retaining daily drive-ability was the goal of our B46 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 3-1/2 inch diameter pipe which utilizes the least number of bends possible. The large volume helps the turbo spool as quickly as possible by eliminating back pressure during spool up. We are ushering in a new era in performance where we maintain air control standards without significant losses in power by using the GESI super high output catalytic converter in our signature downpipe.

Constructed entirely from 304 stainless steel with 1.5MM wall thickness, we are confident that youu'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 B46!

Visit Exhaust Systems to see additional products in this category.