Remove the tendency to overpower the front tires under hard cornering and minimize traction robbing body lean with the CorkSport Mazdaspeed 3 Rear Adjustable Sway Bar. Compressing inside suspension, the CorkSport Mazdaspeed 3 Rear Sway Bar effectively increases the spring rate on side of the suspension which is compressed most and its adjustability allows you to fine tune the handling. Each Mazdaspeed3 swaybar includes machined 6061-T6 aluminum swaybar brackets which are more durable than the stamped steel design common with other swaybars and look sharp with an anodized black finish.
The CorkSport Advantage
Adjustable: Two endlink attachment points to change the stiffness between 45% stiffer (1305 lbs/inch) than stock, or 80% stiffer (1603 lbs/inch).
Single Piece: A single piece is used to create the rear swaybar which adds strength by removing weak points such as welds.
Billet Swaybar Brackets: Superior bracket design with grease fittings for easy servicing with 90a durometer polyurethane, our brackets and bushings are the last you will need. Once installed, the reduced bar movement gives you extra confidence when taking corners.
The CorkSport Advantage:
Extra Value: Includes Billet Swaybar brackets, at $79.99 value.
One piece design: CNC bent for precise fit and made from 28.5mm 4130 Steel.
Adjustable: Two adjustable locations for the end links to install allowing you to change how much the bar uses the other side of the suspension. 45%/80% stiffer than stock on the Mazdaspeed 3.
Made in the USA: Engineered and manufactured by CorkSport in Vancouver, Washington.
Durable blue or black powder coated finish: can survive the winter driving in areas where roads are salted for snow and ice.
CorkSport Service and Support: Receive a two year limited warranty, full color installation instructions, all of the needed installation hardware, and knowledgeable telephone support.
Install time 2/5 Difficulty 2 year warranty No CEL
So much better than stock happy I waited for it. Definitely worth the upgrade.
Dean Gierz05/23/2021, 10:09 AM
I've had this sway bar on the stiffest setting for only 50 miles and I am impressed. Installed with a new pair of end links. The car is much more confident in cornering and this has got to be my second favorite(after rear motor mount Stage 11) and instantly noticeable install.
Jesse F.01/07/2019, 06:37 AM
I bought this RSB for my 08 speed3 over a year ago. Install was a little longer because I had to cut the old sway links off but it wasn’t bad. I went straight to the stiffest setting and haven’t looked back! High speed cornering has vastly improved. The car feels like it’s on rails. This RSB coming with the CNC mounts makes it a no brainer over other options available out there.
Andrew Cesarini10/28/2018, 08:21 AM
I've been driving with this for about 2 weeks now on the "low" setting I guess you could call it, and this has definitely corrected the issue with understeer. I'm actually curious about trying the "high" setting just to see how it feels. As always CS provided absolutely beautiful craftsmanship. I mean the brackets alone are a true work of art.
Ryan Olson07/27/2018, 10:43 AM
drive with confidence. I wanted this for a while and betrayed CS for a different brand and it didn't work out too well and I suffered greatly. I have over 10 CS products so far and they haven't get me down.
GCPhotographers04/25/2018, 07:31 PM
In December of 2016, I installed the rear sway bar on my 2011 MS3, which had an otherwise stock suspension. Installation straight-forward and can be done in under an hour, including time to lift the car and setup. Some of the bracket and end link wrenching angles are slightly awkward, and I found a 0.5-in drive to be helpful on the bracket bolts. I used the stiffest of the two end-link positions.
Driving impressions...I appreciated the “tucked” in feeling of the rear end during cornering and decreased body roll, which made canyon carving more comfortable. In my experience with aggressive street (not track) driving, the RSB on its stiffest setting does not turn the car into an unpredictable drop-throttle oversteer monster, even in lower traction conditions. Breakaway is gradual and predictable. My suspicion is that the large degree of static camber and camber gain in the rear suspension help with cornering traction.
In all, I am very pleased with this RSB kit. The fitment is excellent and the spring rate is perfect. The brackets are impressively high-quality pieces, and I have had no squeaking issues to date. The RSB works best with a stiffer FSB - see my review there for more details....
CA_MS303/27/2018, 01:22 PM
WOW, perfect for cutting out much of the understeer and flattening out the handling. Awesome!
Rev David Poedel04/26/2017, 03:48 PM
For me this upgrade is by far the most noticeable and easiest change to my Mazdaspeed 3. I thought the OEM rear sway bar was impressive but the Corksport RSB puts the OEM to shame. So much fun now taking corners. I can't wait to upgrade the front.
John D07/01/2016, 08:38 AM
Put this RSB on this weekend. Easy to install. The only PIA part was getting the top bolt on the driver side bracket to go in. This just due room(part of the heat shield is there, along with man hands). Also did not have to take end-links completely off, just unscrewed top nut to the top. Noticeable difference of body roll or lack of roll during spirited cornering. One-piece design. I highly recommend.
Chris Schraml05/23/2016, 03:41 PM
I just installed the RSB on my 2013 Speed3. I was surprised at how simple this piece was to install. It took me about 45 minutes from start to finish. My only suggestion is to wear rubber gloves when installing as the grease is really sticky. The rear of my car feels really stable and absolutely what I was looking for. Thanks again Corksport