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Mazdaspeed 3 Rear Adjustable Swaybar

Price: $219.99
Price in points:  What are Points? 220 points
Includes the billet CNC aluminum swaybar brackets.
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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 Mazdaspeed 3 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 endlink attachment points

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

Single Piece CorkSport 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

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.
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.

The product itself seems well engineered. I'm particularly impressed with the included sway bar brackets (they may be the #1 reason to purchase this bar over any other brand). I would not hesitate to purchase this product again.
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.
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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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