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2007-2013 Mazdaspeed 3 Rear Adjustable Swaybar

Price: $229.99
Price in points:  What are Points? 230 points
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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

Two Speed 3 swaybar endlink attachment points

Adjustable: Two endlink attachment points to change the stiffness between 114% stiffer than stock, or 180% stiffer.

Mazdaspeed 3 Swaybar

Single Piece: A single piece is used to create the rear swaybar which adds strength by removing weak points such as welds.

Bushings are included with CorkSport's Mazda swaybar brackets.

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. 114%/180% 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

    How to install a Mazdaspeed 3 rear swaybar

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.
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.
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.
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.
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....
WOW, perfect for cutting out much of the understeer and flattening out the handling. Awesome!
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.
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.
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
First thing is first, if you are contemplating this upgrade, just stop....and buy one. This is one of the best parts that I have added to my setup! I started with a Corksport Coilover kit, which was also an awesome purchase, but after adding this bad boy, holy sh*#.

The rear end feels a tad sturdier(definitely more stable), but the most noticeable change was steering, and just overall control/stability of the vehicle. Cornering was fun before, but it now takes a lot less concentration to keep things under control, even taking the corners at higher speeds is a piece of cake.

Seriously one of the best upgrades I have done for this platform. It honestly blew my mind the difference it made.
This is a great product, I'm very pleased with the results! I'm running OEM springs/shocks/wheels/tires on a gen2 MS3. My alignment is set at 1/32" toe in on each wheel. With the bar on the stiffest setting, the ride during normal city driving has not become any harsher. During cornering the car no longer predominantly understeers and feels more lively. The car readily rotates and demonstrates mild lift-throttle oversteer on a tight radius highway on-ramp @ 50 mph.
Wow, just went on a 2k km road trip on some of the best driving roads in the country and I was blown away by the improvements this sway bar made on my 2k13 MS3. I took people who had been in my car with 100% stock susp/chassis for spirited runs and they were blown away, many comments such as 'this is the best handling car I've ever been in", and considering these peeps, and the cars they own or have been in, that's a significant compliment. especially on OEM tires/struts.

Install is easy and straight forward, the most difficult part of the install is lining up the billet brackets evenly, but it's really not that hard if you have a friend helping or a lift..

Please be sure to torque down everything properly, and even after using the supplied ES bushing grease it will not hurt to use the grease fittings to make sure everything is lubed proper.

I set my RSB on the 180% (stiffest) setting and loved it, was so surprised on how well my MS3 still took speed bumps and rough roads, feels as good as OEM in this department.

Just take your time installing it and take your time tightening/torquing everything down properly.. I love the black option for pretty much all the CS gear, it makes everything look stock and very sleepy ;)

When I first installed it, and drove my normal commute I couldn't tell how much of a difference it made. Once I had it on some of my fave driving roads it became immediately apparent that it made a HUGE difference, my car just failed to under-steer, and the ass end would kick out before anything bad happened to the front end.

Cheers on another great Corksport product,
The rear sway bar comes nicely packaged with stickers, great instructions, and looks wonderful. These have finally gotten rid of my issues with squeaking bushings, and hugely reduced body roll. The attention to detail is great. Take your time installing and have fun.

Corksport is the model by which all companies should strive to be, however them not following in suite is what makes me keep coming back for more.

The customer service is spectacular, when I call with questions I get to speak to an engineer. Being an engineer, there is nothing more frustrating than sales people BS-ing their way through your questions to get to the gold. This is a company that builds a relationship with their customers, does what they can to help them, and build great products because they care.

this totally changed the way the my Speed3 drives around corners... i was skeptical about how much difference it would make but it really plants the rear of your car and frankly now i can't wait to get the front one.... the billet mounts were also a really nice touch

sucks they were out of black though
Love this RSB. Really cuts down on understeer and improves cornering significantly. Makes road rallys a lot more enjoyable!
I have had this installed on my 2015 Mazda 3 HB for about 5 months so I have the older mounts. It has always made a clicking sound when going up a driveway, pothole or when making a right turn. I have tried tightening the nut on the sway bar link and have even put loctite on it and it still makes the noise. Im pretty sure its the sway bar link hitting my springs.

CorkSport Reply:Paul Give us a call at 360-260-2675, the rear swaybar should be no where near the rear springs.
over 14 months after I put it on....just get it...front and back. Strongly consider the 4 point brace for the front end too. two words.... Go Kart.

nuff said. Thanks for the great enhancement Corksport

Great RSB, this bar has got girth.. Can't wait to tear up the track with this beast.... Thank you Corksport...
Got the front and rear installed 2 days ago, instructions they give you make it easy, customer service is outstanding, and my car handles awesome. Highly recommend
JUst wanna say, Awesome Job!, on this sway bar. I bought it slightly used from a fellow Mazdaspeeder! And it kicks A$$. What a difference over stock. I thought it handled well on its own, now with over 40,000 miles, i can feel the chassis getting very loose compared to the day i bought it new. This bar really keeps it planted to the ground. I've got some really sharp corners by my house and i used feel the nose of the car get really overwhelmed when taking these corners, but now its incredible how much better you can corner. Well done, and I love the blue color, looks sharp, just need to get the new brackets you just released. Thanks again!
The Energy Suspension brackets supplied with this kit have failed three times. Could have made your own.
Install went very well, only question i have is, i am using the factory endlinks, and now i am getting a knocking sounds over bumps in the road. Can the factory links support this bar? or should have i upgraded them?
Great product. Tracked the car two days after installing the front and rear sway bars and it was flawless. Great job CorkSport!
Great product. Tracked the car two days after installing the front and rear sway bars and it was flawless. Great job CorkSport!
Will this bar fit on a 08 mazda 3 2.0L? And how many mm is the bar?
Will this fit a 2012 mazda 3 sedan?
This is a night and day difference OMG I did mot expect this much.

I noticed the improvment instantly. I can take turns like a champ no hesitation no 2nd thoughts. Winner status!
will this fit a 2012 SA hatchback?

CorkSport Reply:Yes
This sway bar is definitely a must if you want to improve the handling of your Mazdaspeed 3. It reduces body roll and gives the car a more solid feel. Furthermore, it diminishes under steer when attacking a curve .Everything it said it would do. Just another excellent product from Corksport 5/5
will this work on 2012 mazda 2.0 non skyactive?

CorkSport Reply: You can fit the swaybar on a Mazda 3 if you upgrade the end links to the Mazdaspeed 3 type.
Easy install and good instructions. I have it on weakest setting but that is only 114% stiffer than EOM. Only other setting is 180% stiffer, will try that next b/c weaker is very same difference. Why such extreme differences:114% or 180%?? nothing in between. I don't race my MS3 but I hope to get a little more than 14% better handling. I read that too stiff will make tires slide (interstate ramps be hardest cornering for me).

Will the 180% make me slide on the interstate ramps on rainy days?? ~a little worried~ If I slide, I'll repost
Put it on my 2013 Speed 3, on the stiffest setting. Probably should not of been surprised, but i was. Holy S*** what a difference it makes. I am completely happy that i did this as my first mod !!
another great product from the folks at corksport! entering and exiting corners feels like your on rails. install was as easy as it gets (10 minutes with an air tool and a buddy) and (5 minutes to adjust the positioning) hands down great product. thanks corksport!

ps. cant wait for the front sway bar
The handling improvement that just this one modification made on my Mazdaspeed3 was dramatic! Makes the car stay nice and flat in the corners. Installation was super simple and took less than an hour.
Never thought 15 min of work would change my car this much. It makes me want to speed through corners a lot more because I know that it can take it. the adjustment is great, I am able to change it for the days at the track or regular street driving.
Excellent product...but it came with the "Corksport" logo on the bar in the place directly under the swaybar mount. If anyone is under the car they'll see "Corksp". Why would you not put the sticker right in the middle???
Actual install took less than half an hour. Parts fit perfectly. Weight transfer to the outside front is so much more positive. Really nice.
Install took about 20 minutes even in the pouring rain. The item was not exactly as described in the details. It does not have the stops for the bushings. I took the vehicle out promptly after installing the part and I noticed a world of difference even on the recommended middle setting with stock springs. The car turns like never before and should do well in the upcoming season of SCCA autocross.
If you're on the fence about making the decision to purchase this swaybar, make the plunge. You will not be disappointed.

Very easy to install and it shouldn't take more than a couple hours, and that is from start to finish with plenty of breaks in between. I noticed a dramatic improvement over the stock swaybar and this was at the middle setting. Thanks Corksport.

Turn in is great, feels solid and being able to adjust it is very nice and easy.
awesome turnout on my 2010 mazda3 i 2.0
20 minutes to install on my 2010 Mazda5 (using air compressor). Great turn-in and neutral feel overall. This car also has AutoEXE springs on stock struts. This swaybar was set to the middle setting and is a perfect complement to the car. I like front wheel drive cars with stock front bars and bigger rear bars and this was perfect. Fitment was flawless too.
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Is it better to tighten everything down when suspension is loaded or unloaded? i.e. on ramps vs on jackstands?

Asked by Ed | 10/26/2017, 06:13 PM | 1 answer(s)

So you only offer end links for the front sway bars, not for rears?

Asked by Jesse | 09/20/2017, 01:17 PM | 1 answer(s)

Does this fit both the Gen1 and Gen2?

Asked by Randy | 12/15/2016, 05:44 PM | 0 answer(s)

Do I need to get my car alligned after installing this?

Asked by Kyle | 06/20/2016, 05:31 PM | 1 answer(s)

How often do you need to lubricate?

Asked by William Mark | 02/26/2016, 09:04 AM | 1 answer(s)

will I need new endlinks if I install this on a Mazda 3 sky?

Asked by Tyler | 02/03/2016, 09:31 PM | 1 answer(s)

Since there is no FAQ section on the front sway bar, how much do the front and rear sway bars each weigh?

Asked by Chandler Wendt | 03/18/2015, 09:47 PM | 1 answer(s)

Will these work with moog endlinks? Front and rear?

Asked by Sean Singh | 01/14/2015, 07:15 AM | 1 answer(s)

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