What does the Dinan 430i and M440i xDrive Sway Bar Set fit?

The Dinan 430i and M440i xDrive Sway Bar Set fits the G22, G23, and G26 BMW 430i and M440i xDrive (2021-2026). Each bar is tuned specifically for the chassis rather than shared across unrelated platforms, for a precise fit and predictable handling.

Yes. The Dinan 430i and M440i xDrive Sway Bar Set is adjustable, letting you fine-tune the handling balance and stiffness for street comfort or track use without changing the bars themselves.

How does it improve handling?

The Dinan 430i and M440i xDrive Sway Bar Set reduces body roll versus the factory bars, keeping the car flatter through corners while still allowing enough roll to load the tires. The result is more mechanical grip, sharper turn-in, and more stability at the limit.

Is it hard to install?

Installation is a bolt-on suspension job best performed with the car safely lifted. The Dinan 430i and M440i xDrive Sway Bar Set reuses the factory mounting points and includes the necessary bushings and hardware where applicable. Professional installation is recommended.

The Dinan 430i and M440i xDrive Sway Bar Set is sold as a matched front and rear set, with both bars and the necessary bushings and hardware included together.

Description

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Description

Dinan Adjustable Front and Rear Sway Bar Set 25mm / 19mm for G22 / G23 / G26 BMW 430i and M440i xDrive

The Dinan 430i and M440i xDrive Sway Bar Set is a chassis-tuned front and rear anti-roll bar set for the G22, G23, and G26 BMW 430i and M440i xDrive. Where the factory bars are sized for comfort, Dinan tunes each bar specifically to the chassis to cut body roll and keep the car flatter through a corner while still loading the tires for mechanical grip, for a more planted, confident feel on the road and track. Front 25mm and adjustable rear 19mm bars are tuned to balance the 4 Series on all-wheel drive. Front 25mm and adjustable rear 19mm bars.

Features

Made of high tensile strength alloy steel with tubular (hollow) construction for maximum strength while limiting weight
Rear bars are 2-hole adjustable allowing you to fine tune settings for environment or comfort preference
Larger, more robust, bars; Front – 25mm size (vs. stock 23.1mm), Rear – 19mm size (vs. stock 18mm)
Increased stiffness to combat roll; Front – 56% stiffer, Rear – 54-66% stiffer
Includes polyurethane bushings and grease
More stable at the limit
More mechanical grip
Less body roll

Specifications

Material: high-tensile alloy steel
Type: front and rear anti-roll bar set
Front bar: 25mm
Rear bar: 19mm, adjustable
Drivetrain: xDrive all-wheel drive
Bushings: included where applicable

Applications

BMW 430i xDrive: G22 / G23 / G26 | 2021-2026 | 2.0L Turbo I4 B48
BMW M440i xDrive: G22 / G23 / G26 | 2021-2026 | 3.0L Turbo I6 B58

Frequently Asked Questions

What does the Dinan 430i and M440i xDrive Sway Bar Set fit? The Dinan 430i and M440i xDrive Sway Bar Set fits the G22, G23, and G26 BMW 430i and M440i xDrive (2021-2026). Each bar is tuned specifically for the chassis rather than shared across unrelated platforms, for a precise fit and predictable handling.
Is it adjustable? Yes. The Dinan 430i and M440i xDrive Sway Bar Set is adjustable, letting you fine-tune the handling balance and stiffness for street comfort or track use without changing the bars themselves.
How does it improve handling? The Dinan 430i and M440i xDrive Sway Bar Set reduces body roll versus the factory bars, keeping the car flatter through corners while still allowing enough roll to load the tires. The result is more mechanical grip, sharper turn-in, and more stability at the limit.
Is it hard to install? Installation is a bolt-on suspension job best performed with the car safely lifted. The Dinan 430i and M440i xDrive Sway Bar Set reuses the factory mounting points and includes the necessary bushings and hardware where applicable. Professional installation is recommended.
How is it sold? The Dinan 430i and M440i xDrive Sway Bar Set is sold as a matched front and rear set, with both bars and the necessary bushings and hardware included together.

About Dinan

Founded in 1979, Dinan is North America’s leading BMW tuner, developing, manufacturing, and marketing a full line of high-performance products for BMW, MINI, and Mercedes-Benz. Dinan works through a nationwide network of Authorized Dinan Performance Centers, including select BMW dealerships and independent BMW service and performance shops. The company’s warranty program, introduced in 1996 with BMW of North America’s cooperation, matches BMW’s new car warranty and covers Dinan enhancements and the vehicle itself for up to 4 years or 50,000 miles. That coverage lets BMW owners add real performance without risking their factory warranty. Automotive publications have tested Dinan-enhanced BMWs against some of the world’s most exotic sports cars for three decades, and the results consistently hold up. Despite that performance, Dinan BMWs keep the reliability and everyday civility BMW owners expect. The product line spans engine, driveline, and chassis components across the full BMW lineup, covering acceleration, cornering, and stopping power. Every Authorized Dinan Performance Center can help build anything from a single upgrade to a complete Dinan BMW.

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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