Rear Sway Bar Upgrade for 2019+ Mazda 3 & CX30

Corksport SKU: AXO-3-071-10
Rear Sway Bar Upgrade for 2019+ Mazda 3 & CX30

Rear Sway Bar Upgrade for 2019+ Mazda 3 & CX30

Corksport SKU: AXO-3-071-10
Choose Drivetrain Fitment
Regular price $289.99 USD

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Introducing the CorkSport Rear Sway Bar for 2019+ Mazda 3 and CX-30. Improve your handling characteristics, reduce body roll, and reduce understeer by adding a sway bar to the rear of your GEN4. We tested multiple diameters and settled on a 7/8” diameter solid bar to ensure minimal impact on ride quality but with a big bonus to handling.

With fitments for both AWD and FWD setups, you can be sure there is an upgrade that’s perfect for your car. Read on for details and check out the release blog for even more info!

Read the blog: Reduce Body Roll With The New CorkSport Rear Sway Bar


The CorkSport Advantage

2023 Mazda 2 Rear Sway Bar

Racing Inspired:

With our experience racing our old Mazda 2, we knew right away that we had to figure out a rear sway bar for the GEN4’s torsion beam suspension to help fight understeer. Since there is no OEM sway bar, we had to get creative. The CorkSport GEN4 Mazda 3 sway bar bolts directly to the torsion beam of the vehicle, similar to our Mazda 2 Torsion Bar. Since a torsion beam essentially acts as a sway bar, adding on extra material offers the same effect as moving to a bigger bar with a more typical suspension.

Mazda3 2020 Handling Improvement Blue Sway Bar

Handling Boost:

The main goal of the CS rear sway bar is to improve handling. By effectively stiffening the torsional rigidity of the rear torsion beam, understeer is reduced, body roll is reduced, and handling feel is improved. We chose a 7/8” diameter solid bar for the right balance of understeer reduction without dangerous oversteer. You can get the car to rotate if you’re really attacking an autocross course but don’t worry, it is perfectly controllable and safe for daily driving and hitting a backroad.

Mazda3 Gen 4 Anti Roll Bar Kit

Fitment Focused:

While the concept is similar to our Mazda 2 bar, the design had to be totally unique in order to fit the GEN4 Mazda 3 just like an OEM part. We ended up with a separate design for both the FWD and AWD versions to really optimize fitment. There is one minor drawback for installation though. Some plastic aerodynamics pieces must either be removed or trimmed for fitment. We tried to avoid this; however, it was a necessary evil in order to utilize optimal mounting locations.

BP Mazda 3 Forged Carbon Wing

Materials & Manufacturing:

Like all CorkSport sway bars the GEN4 Mazda 3 bar is made from 4130 steel for great strength and consistent performance over time. We finish off the bars in CS blue powder coat for FWD vehicles and red powder coat for AWD vehicles. This ensures a great look and corrosion resistance. Each rear sway bar kit also comes with all the hardware needed for installation, all of which is made from stainless steel so it’s sure to stand the test of time. We even use locking nuts so you can be sure your sway bar stays where it’s supposed to.

Product Advisory Note
    • Removal or minor trimming of plastic aerodynamic components is required for installation. See installation instructions for details.
    • AWD vehicles that are extremely low and/or bagged will need to verify clearance from the top of the sway bar to all other components of the vehicle to ensure safe operation.
    • Cannot install on AWD vehicles with a lift kit. The sway bar will interfere with the differential/driveshaft system.

Additional Features

  • Vehicle Fitment: 2019+ Mazda 3 FWD, AWD and Turbo. 2019+ Mazda CX-30 FWD, AWD, and Turbo.
  • Developed in America: Designed, tested, and proven in Vancouver, Washington.
  • CorkSport Service and Support: Receive a 2-year warranty, full-color installation instructions, all of the needed installation hardware, and knowledgeable telephone installation support.

How To Install the CorkSport Rear Sway Bar

It will take you Approx. 1 hour to install the Mazda Rear Sway Bar .


1 hour Install Time

1 hour Install Time

Difficulty: 2/5

2/5 Difficulty

2-Year Warranty

2-Year Warranty



2019-2023 Mazda3 Installation Instructions for a hatch Wing

Tracking will be sent once it leaves our warehouse.

For Canadian shipments, if the item is at a US address, the item needs to be brought into our Winnipeg warranty prior to shipping out to the destination.

Tracking information will be received once it leaves Winnipeg.

Please note, average turn around time for this is roughly 2 weeks, if the product is in stock.

Absolutely NO refunds/exchanges on special order items. If return of a non special order item is requested, customer must pay shipping and it must be requested within 14 days of purchase. 

Any orders not picked up by the customer within 15 days after notification of arrival becomes property of OSS Motorsport Ltd. no credit or refund will be given.

Customers that remove product(s) from OSS Motorsport will have been deemed to agree with all of the above terms and conditions. All items sold are for Off Road Use Only.


Unwanted items are subject to a 20% restocking fee, in addition to the return shipping to our warehouse(if applicable). Used items cannot be returned.


All Electronics are final sale!


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Shipments, returns & refund

During the payment process, we provide delivery options with different delivery companies with which we have no contractual relationship. We offer commission free this added service so the client can receive its order without having to round trip to our warehouse. If there is any problem with the delivery, it is the consignee responsibility to contact the delivery company he/she dealt with directly. The carrier provide a limited insurance of 100$. If you need more, please contact us prior to purchase as we will get you the quotation for extra insurance from the carrier you will select.

NO return accepted. Exchange upon approval and proof of factory default.

Partial or full refund requests are subject to 5% administrative fees. Refund is immediately issued upon cancellation and a confirmation email is sent. However, depending on the payment method used, it may take one (1) to ten (10) days for the refund to appear in client account.

Special orders are non-refundable.

United States orders may be subject to Custom fees and tax as we ship from Canada. 


Some products may be used for off-road only. Customer is responsible to check with his/her local/state laws and ordinances.

We are not responsible if the client ordered the wrong item, which does not work on its vehicle.

All parts required professional installation, there is no return or exchange if the client does not know how to install it him/herself.

OSS Motorsport is not responsible for defective or damage caused by unprofessional installation or misuse of the product.

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