Does the Dinan M3 sway bar set fit the M2 and M4?

Yes. The Dinan M3 sway bar set fits the G80 BMW M3 and G82 / G83 M4 (2021-present) and the G87 M2 (2023-present), including xDrive variants. Each bar is tuned specifically for the G8X chassis rather than shared across unrelated platforms.

Are the bars adjustable?

Yes. The rear bar is two-hole adjustable, letting you fine-tune the front-to-rear balance and stiffness for street comfort or track use. The front bar is a fixed 28mm. Adjusting the rear changes how much the car rotates without needing to change the bars.

How much stiffer are they than stock?

The front bar grows from the 23.5mm stock bar to 28mm for about 18 percent more stiffness, and the rear grows from 21.9mm to 26mm for 35 to 48 percent more depending on the adjustment setting. The tubular construction adds this stiffness while keeping weight down.

Is it hard to install?

Installation is involved: the subframe must be dropped, so professional installation is highly recommended. Dinan lists roughly 10.3 hours of labor including a post-install alignment. Polyurethane bushings and grease are included in the set.

Are bushings included?

Yes. The set ships with polyurethane bushings and grease for both bars, so no separate bushing purchase is needed. Polyurethane holds the bars more precisely than rubber for sharper turn-in and more consistent roll control.

The Dinan M3 sway bar set is sold as a matched front and rear pair, with the 28mm front bar, the 26mm two-hole adjustable rear bar, polyurethane bushings, and grease included together.

Description

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Description

Dinan Adjustable Front and Rear Sway Bar Set 28mm / 26mm for G80 BMW M3, G82 / G83 M4, and G87 M2

The Dinan M3 Sway Bar set is a chassis-tuned front and rear anti-roll bar upgrade for the G80 BMW M3, G82 and G83 M4, and G87 M2. Where the factory bars are sized for comfort, Dinan tunes each bar specifically to the G8X chassis to cut body roll and keep the car closer to level through a corner while still allowing enough roll to load the tires for mechanical grip. The bars are formed from high-tensile alloy steel with a tubular, hollow construction that adds stiffness without the weight of a solid bar: the front measures 28mm versus the 23.5mm stock bar for 18 percent more stiffness, and the rear measures 26mm versus 21.9mm stock for 35 to 48 percent more, with two-hole rear adjustment to fine-tune balance. Polyurethane bushings and grease are included, and the Dinan M3 sway bar gives a more planted, confident feel that makes it a staple upgrade for back-road and track drivers. Front 28mm and rear 26mm bars with two-hole rear adjustment.

Features

Front bar 28mm (versus 23.5mm stock), 18% stiffer to control roll
Rear bar 26mm (versus 21.9mm stock), 35-48% stiffer
Two-hole adjustable rear bar to fine-tune handling balance and ride preference
High-tensile alloy steel with tubular, hollow construction for strength with less weight
Powder-coated finish for corrosion resistance
Includes polyurethane bushings and grease
Less body roll, more mechanical grip, and more stability at the limit

Specifications

Material: high-tensile alloy steel, tubular (hollow) construction
Finish: powder-coated
Front bar: 28mm (versus 23.5mm stock), 18% stiffer
Rear bar: 26mm (versus 21.9mm stock), 35-48% stiffer, two-hole adjustable
Bushings: polyurethane, included with grease
Drivetrain: RWD

Applications

BMW M2: G87 | 2023-present | 3.0L Twin-Turbo I6 S58
BMW M3: G80 | 2021-present | 3.0L Twin-Turbo I6 S58
BMW M4: G82 / G83 | 2021-present | 3.0L Twin-Turbo I6 S58

Notes

Sold as a front and rear set
Installation requires dropping the subframe; professional installation is recommended

Frequently Asked Questions

Does the Dinan M3 sway bar set fit the M2 and M4? Yes. The Dinan M3 sway bar set fits the G80 BMW M3 and G82 / G83 M4 (2021-present) and the G87 M2 (2023-present), including xDrive variants. Each bar is tuned specifically for the G8X chassis rather than shared across unrelated platforms.
Are the bars adjustable? Yes. The rear bar is two-hole adjustable, letting you fine-tune the front-to-rear balance and stiffness for street comfort or track use. The front bar is a fixed 28mm. Adjusting the rear changes how much the car rotates without needing to change the bars.
How much stiffer are they than stock? The front bar grows from the 23.5mm stock bar to 28mm for about 18 percent more stiffness, and the rear grows from 21.9mm to 26mm for 35 to 48 percent more depending on the adjustment setting. The tubular construction adds this stiffness while keeping weight down.
Is it hard to install? Installation is involved: the subframe must be dropped, so professional installation is highly recommended. Dinan lists roughly 10.3 hours of labor including a post-install alignment. Polyurethane bushings and grease are included in the set.
Are bushings included? Yes. The set ships with polyurethane bushings and grease for both bars, so no separate bushing purchase is needed. Polyurethane holds the bars more precisely than rubber for sharper turn-in and more consistent roll control.
How is it sold? The Dinan M3 sway bar set is sold as a matched front and rear pair, with the 28mm front bar, the 26mm two-hole adjustable rear bar, polyurethane bushings, and grease 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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Dinan Adjustable Front and Rear Sway Bar Set 28mm / 26mm for G80 BMW M3, G82 / G83 M4, and G87 M2

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Dinan Adjustable Front and Rear Sway Bar Set 28mm / 26mm for G80 BMW M3, G82 / G83 M4, and G87 M2

Features

Specifications

Applications

Notes

Frequently Asked Questions

About Dinan

Reviews