Do I need to cut the factory exhaust to fit the Mid-Pipe for G20 BMW M340i?

Yes, if you fit the Mid-Pipe for G20 BMW M340i and G22 M440i on its own, the factory exhaust has to be cut and Active Autowerke supplies the connecting hardware. No cutting is needed when you install it with the Active Autowerke rear exhaust, because the whole factory system comes out together.

Which version fits my car?

Active Autowerke builds two versions. Cars from 2024 and older take the mid-pipe with its G2X brace, and 2025 and newer cars take the version with the Active Brace. The price is the same, so choose by the model year of your car and ask us to confirm if the build date is unclear.

How much louder will the car be?

The mid-pipe has no resonator in the Y-section, so the B58 sounds lower and deeper with the factory rear section and fuller with an aftermarket one. Active Autowerke designed it to add character rather than raw volume, and it pairs best with the Active Autowerke rear exhaust.

Does it fit the M440i Gran Coupe and Convertible?

Active Autowerke guarantees the fit on all G-series M340i and M440i models, which includes the G22 coupe, G23 convertible and G26 Gran Coupe. Each mid-pipe is test-fitted on its in-house fixture before shipping, so the fit is checked before it reaches you.

What is the brace for?

Active Autowerke includes a brace to give the mid-pipe additional clearance under the car. It comes in both versions, the custom G2X brace for 2024 and older cars and the Active Brace for 2025 and newer cars, so there is nothing else to buy for the installation.

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Description

Active Autowerke Mid-Pipe for G20 BMW M340i and G22 / G23 / G26 M440i

Active Autowerke’s Mid-Pipe for G20 BMW M340i and G22 / G23 / G26 M440i is for the owner who likes the B58 but finds the factory exhaust too polite. It replaces the stock mid-pipe and does without the resonator BMW placed in its Y-section, which lets the six-cylinder breathe and speak with a lower, deeper voice through either the factory rear section or an aftermarket one. Every unit is made in the USA from 304 stainless and test-fitted on Active Autowerke’s own M340i / M440i exhaust fixture before it ships, and Active Autowerke guarantees the fit on all G-series M340i and M440i. It is the most affordable way to give these cars real character, and the natural first step toward the full Active Autowerke system.

Model Year and Brace

Two versions follow BMW’s running changes. Cars from 2024 and older take the mid-pipe with Active Autowerke’s custom G2X brace, and 2025 and newer cars take the version with the Active Brace. In both cases the brace gives the mid-pipe extra clearance under the car, and all connecting hardware is in the box.

Features

No Y-section resonator, for a lower, deeper sound
Works with the factory rear section or aftermarket exhausts
Made in the USA from 304 stainless steel
Test-fitted on the Active Autowerke in-house exhaust fixture
Brace included for extra clearance
All installation hardware included

What’s Included

Mid-pipe
Active Autowerke brace for the model year ordered
Connecting hardware

Applications

BMW M340i: G20 | 2020-present | 3.0L B58
BMW M440i: G22 / G23 / G26 | 2021-present | 3.0L B58

Notes

Fitted on its own, the Mid-Pipe for G20 BMW M340i and G22 / G23 / G26 M440i requires a cut in the factory exhaust; all connecting hardware is supplied
No cutting is needed when it is installed together with the Active Autowerke Valved Axle-Back Exhaust for G20, because the whole factory exhaust is replaced
Order the 2024 and older version or the 2025 and newer version to match the model year of the car
The combination is also sold as the Rear Exhaust and Mid-Pipe Bundle, and with an AFlow downpipe as the Full Exhaust Bundle with AFlow Downpipe

Frequently Asked Questions

Do I need to cut the factory exhaust to fit the Mid-Pipe for G20 BMW M340i? Yes, if you fit the Mid-Pipe for G20 BMW M340i and G22 M440i on its own, the factory exhaust has to be cut and Active Autowerke supplies the connecting hardware. No cutting is needed when you install it with the Active Autowerke rear exhaust, because the whole factory system comes out together.
Which version fits my car? Active Autowerke builds two versions. Cars from 2024 and older take the mid-pipe with its G2X brace, and 2025 and newer cars take the version with the Active Brace. The price is the same, so choose by the model year of your car and ask us to confirm if the build date is unclear.
How much louder will the car be? The mid-pipe has no resonator in the Y-section, so the B58 sounds lower and deeper with the factory rear section and fuller with an aftermarket one. Active Autowerke designed it to add character rather than raw volume, and it pairs best with the Active Autowerke rear exhaust.
Does it fit the M440i Gran Coupe and Convertible? Active Autowerke guarantees the fit on all G-series M340i and M440i models, which includes the G22 coupe, G23 convertible and G26 Gran Coupe. Each mid-pipe is test-fitted on its in-house fixture before shipping, so the fit is checked before it reaches you.
What is the brace for? Active Autowerke includes a brace to give the mid-pipe additional clearance under the car. It comes in both versions, the custom G2X brace for 2024 and older cars and the Active Brace for 2025 and newer cars, so there is nothing else to buy for the installation.

About Active Autowerke

Active Autowerke was founded in Miami, Florida in 1981 by brothers Mike and Karl Hugh as a BMW service shop, and turned to performance in late 1995 when Karl, a University of Miami engineering graduate, led its first M3 and 325i turbo kits. Supercharger kits for the E36, E46 and E9X followed, and its Signature Equal Length mid-pipe is protected by US Patent 11248511 and European and UK Patent 3882441.

Additional Information

The Bulletproof Automotive website contains many thousands of products purchased in multiple different currencies. All of the prices are entered manually and accurately at the time of entry. Due to the consistently fluctuating international exchange rates, at times prices may not be able to be honored at their original intended rate. We apologize for any inconvenience this may cause, unfortunately our website is unable to compensate dynamically for what can at times be volatile changes in the cost of items due to currency values fluctuating, changes in prices from suppliers, changes in shipping and import duties, and other factors. Rest assured that any order you place on line will be at zero risk to you in this area. If in the event your order cannot be fulfilled at the original intended website price we will offer you a 100% refund, no questions asked. We will continue to do our best to maintain updated prices and we will always continue to offer our price match guarantees as well to ensure our prices are always the best for you. In short, prices may change without notice. It is always advised to give us a call prior to placing your order online to confirm availability and to confirm current pricing.

Shipping Policy

Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions here.

BP Pricing Difference

We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well. For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at sales@bulletproofautomotive.com with any inquiries.

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Active Autowerke Mid-Pipe for G20 BMW M340i and G22 / G23 / G26 M440i

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Active Autowerke Mid-Pipe for G20 BMW M340i and G22 / G23 / G26 M440i

Model Year and Brace

Features

What’s Included

Applications

Notes

Frequently Asked Questions

About Active Autowerke

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