Steeda Mustang Adjustable Front and Rear Sway Bar Kit (2015-2022)

22 Review(s)
$24.00 (4%)
Steeda has the track-proven sway bar combinations that will give you reduced body roll, adjustability, and the best handling of any sway bar package out on the market.

Part Number: 555 1017
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Steeda has the track-proven sway bar combinations that will give you reduced body roll, adjustability, and the best handling of any sway bar package out on the market.

We offer several packages to meet different needs and budgets starting with our Steeda Mustang Front and Rear Sway Bar Kit for your 2015+ Mustang GT, EcoBoost, or V6 Fastback Coupe.

Our Steeda Mustang Front and Rear Sway Bar Kit for your 2015+ Mustang GT, EcoBoost, or V6 is our entry level kit for hardtop Mustang owners. This kit includes our adjustable Steeda front sway bar, and an adjustable Steeda rear sway bar that installs onto the factory rear sway bar end links. This kit will provide an increase in front and rear roll stiffness for a balanced handling package.

Our press-fit welded billet ends are far stronger than stamping the end of the bar. Billet machining construction of the Steeda Mustang Front and Rear Sway Bar ends makes for far greater strength for a bulletproof sway bar.

Our sway bars have machined steel billet sway bar ends, whereas others on the market have coined ends. What does this mean? Our sway bar ends are machined out of billet steel round stock, in-house, on our multi-axis CNC lathes and go through hundreds of computer simulations to ensure the ultimate in strength and performance - this provides greater resistance to bending stresses, and has three major advantages:
  1. These parts are less prone to cracking/fatigue failure on the ends themselves.
  2. It also reduces unwanted deflection in the sway bar end. Excess deflection creates unwanted geometry changes, which physically changes your sway bar stiffness to a non-ideal rate.
  3. With less unwanted deflection, our bars will 'wear out' slower - any spring will eventually become softer over time as it is cycled through its life, our bars will maintain their designed rate for longer with less unwanted deflection.

Our bar rates are developed and optimized through advanced vehicle dynamic simulation and through extensive real-world testing. We engineered these bars to control the vehicles' roll stiffness properly while still allowing you to run softer springs. This optimizes your overall grip and balance of the vehicle while still allowing you to maintain exceptional ride quality.

Don't settle for sway bars that are not track tested and made by companies who do not specialize in Mustangs. Steeda engineers, races, and wins with what it sells, Order the best package for your daily driven or track driven 2015-2019 Mustang today!

Purchase you Steeda Mustang Front and Rear Sway Bar Kit for your 2015+ Mustang GT, EcoBoost, or V6 at Steeda Autosports today!

Note: Front Sway bar will fit vehicles equipped with MagneRide Suspension but cannot be used at softest setting due to contact with factory ride height sensor.

See this sway bar kit in action in our Steeda Q500

Notice how composed our Q500 is throughout this turn at Palm beach International Raceway

Product Benefits
  • Front Sway Bar diameter 1-3/8"
  • Rear Sway Bar diameter 1"
  • Improved handling, more stable cornering
  • Reduced body roll
  • Designed and manufactured in-house in the USA by Steeda
  • Competition and street-proven
  • Includes sway bar bushings

CA Residents: Cancer and Reproductive Harm WARNING

Hey Guys, it's Chris from Steeda, and today we're going to reduce body roll on this S550 with a set of Steeda Front and Rear Sway Bars. We're going to go ahead and do a product review and then an installation to show you how to get them installed on this car and then most importantly a before and after with a slalom before totally stock and after with the Steeda front and rear sway bars and a bunch of other Steeda parts as well so without further ado let's get started. So diving in, we have the S550 Front and Rear sway bars fitting your 2015+ Mustang. The front bar is 1-3/8" in diameter you have four adjustable spots on the billet ends and then the rear is an inch and 1/8" in diameter with three adjustable spots. One of my favorite benefits that stands out about the sway bars versus the factory bars is the fact that the factory end links only have one hole but the sway bar is actually pressed into place which inhibits the rigidity of the bar itself. Now, here at Steeda, we use the machined billet ends on both the front and rear bars giving you four positions the rear bar giving you three all kinds of adjustability. With those four adjustable positions in the front bar, you'll be able to be 42 to 97 percent stiffer than a factory performance package sway bar and in the rear you could be 54 to 138 percent stiffer than a factory rear bar.
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Fitment & Features


Manufacturer: Steeda Autosports
Made in USA: Yes

Installation Information:

Level of Difficulty: Medium
Install Time: About 2 Hours
Tools Required: Basic Shop Tools

Vehicle Fitment:

Fits Model Year: 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022

Customer Reviews

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Average Customer Ratings


track use
my 2018 pp understeered and was wearing out the outside edge of the front tires even afterinstalling camber plates and adjusting to -2.6 camber. Now with the adjustable bars I have set the front full soft and the rear in the middle. Just finished two days at the track and the handling is nice and neutral. I can still accelerate out of corners without the rear stepping out.I may adjust the rear stiffer just to see but it is good the way it is now. Nice and predictable.
Did you find this helpful?  1 of 1 Found Helpful
Steeda blue sway bars
Very happy with the ride. Feels very responsive and eliminated a lot of body roll from stock sway bars. Have front sway bar on 2nd setting from the end of the bar and rear setting in the middle. I had front set in on 3rd setting but felt very stiff for street driving. So moved it back 1 setting and all is good. Definitely recommend these bars. 2015 Mustang GT Premium.
Did you find this helpful?  7 of 7 Found Helpful
Verified Buyer  
Sway bar install
Excellent. Very happy with the results and the install. Car is much improved in corners with the bars set in the middle of the adjustment range. They do add a bit of a stiffer ride just cruising but very tolerable. Install took about three hours total for front and back with jack and stands. A lift would make it somewhat easier. Great product.
Did you find this helpful?  2 of 2 Found Helpful
Verified Buyer  
Significant Improvement
Noticed a immediate difference, cornering is a lot tighter , car feels a lot more planted to the ground. Quality parts and paint finish. Glad I chose Steeda! Worth every penny.
Did you find this helpful?  7 of 7 Found Helpful
Verified Buyer  
Excellent Product!
These sways were easy to install as opposed to other horror stories I've heard. The rears were easier, but the fronts were just busy work, nothing to get frustrated over. The roll of the car is so much more controlled I am pleasantly amazed. Currently on the second softest setting in the front and middle setting in the rear and don't feel the need to increase at all! The ride quality and handling due to these has improved ten fold! Steeda customer for life!
Did you find this helpful?  18 of 19 Found Helpful
Verified Buyer  
Blue Bars
Put these on today. Another perfect addition thanks to Randy at STEEDA. The install was easy (even the front bar). Everybody says how hard the front sway bar was, but it took about 30 minutes to remove the stock bar and have the new performance sway bar put in place and tightened up. The rear sway bar is very straight forward and makes the back end of the car look and feel much better. Took the test drive and it really helps in the turns. Along with all the other upgrades, this one puts the finishing touches to the suspension on my S550 GT Performance Package.
Did you find this helpful?  7 of 7 Found Helpful
A ton better
The car drove a ton better with the Steeda sway bars, strut brace and g-brace, than with the stock sway bars. With the stock sway bars it understeered a ton and if you tried to make it turn with the throttle, it would push the front tires more or just finally snap the backend loose. With the Steeda sway bars, I had the front bar on next to the stiffest setting and the rear bar was on the stiffest setting, the car was real neutral and flat, if I drove in to hot I could make it turn with a little more throttle and was easy to control it that way. One of the runs I tried to drive thru a little S section into the salom part of the course wide open in second and hung the back end out side ways at about 60 mph and I just put both feet in for a second and brought it back around and still made it thru the salom. If that would have been the stock bars it would have spun around and took all the cones with it.
Did you find this helpful?  9 of 9 Found Helpful
Car should drive like this out of the factory!
I spend Sunday installing Steeda's front and rear sway bars (with billet aluminum sway bar bushings) on my 2015 GT PP. This is in addition to the progressive springs and sub frame bushing supports that are already installed. The installation of the rear parts were easy while the front was more tedious but not impossible for the average mechanically inclined person. I opted for maximum stiffness on the sway bars for the best handling performance. visibly there is a huge difference in the side and quality of the sway bars. Steeda's are much more stout and the bushing are significantly stiffer, the mounts are lighter (based on the standard mounts that come with the sway bars) but a much better design. The sub frame braces look like the perfect way to tie the IRS sub frame into the vehicle and tighten things up. The brace connects near the jack points on each side to two points on the sub frame and one point in between creating a triangle for some serious stability. This is a tight fit so make sure you follow the instructions from Steeda and keep the bolts loose until things are set. I haven't had the car on the track yet, but there is a huge difference in just daily driving. I've hit a couple of curves hard and the car seems to dive into them and there is much more confidence in the car. I hit a pretty sharp curve the last 2 days on my way to work and I don't feel any understeer at all (at least I can't tell) I was doing between 60-70 mph through the turn it just felt nice! All in all I made a great choice. Steeda should have sold these to ford during manufacturing and the car should drive like this out of the factory!
Did you find this helpful?  6 of 6 Found Helpful
The car feels very nimble and netural
Ok so after a couple days of driving and finally getting some spirited driving in today I think the sway bars made a significant improvement in handling. The car feels very nimble and neutral compared to before. I went with the middle hole in the rear and the 2nd stiffest setting up front. Would recommend this to anyone looking to feel more contacted to the car in the corners.
Did you find this helpful?  4 of 4 Found Helpful
Tracks like a go kart now
On my previously stock GT non-PP i had a odd sensation while cornering that could best be described as a rubber-band feeling. I believe it was compliance of the subframe bushings. It was unnerving. Felt like the start of the tires breaking loose - but it wasn't. I installed the Steeda rear IRS bushing support kit and the IRS braces and the sensation went away. Much improved cornering afterward. I was inspired by the improvement so I added the Steeda springs and swaybars. Tracks like a go kart now.
Did you find this helpful?  11 of 11 Found Helpful
One of the biggest improvements to the handling of the car
One of the biggest improvements to the handling of the car is definitely the Steeda goodies all thanks to David here on the forum. He helped me so much picking out everything I should upgrade for all of the suspension parts to make this a great daily driver but also be able to take turns comfortably at high speeds and put the power to the ground. One of the first Steeda upgrades Slammered threw on for me was the Front/Rear Sway Bars and the IRS Support Brace and damn did it make a pretty damn noticeable difference in turning. No I don't track this car as of right now but the closest I get to taking turns and curves is off ramps from the highways and I've done decent speeds coming through those turns. The sway bars help keep the car planted and definitely boost the handling capability that the IRS already provides. I also installed the billet mounts and they look damn good with the blue sway bars and definitely are top notch quality over the stock mounts from Ford. Wheel hop has been one of the most notorious things the S550 platform has encountered with the new IRS system. Wheel hop is a No no and Steeda's IRS bushings are definitely the first step to knock out way more than 50% of the notorious wheel hop. When taking the bushing out of the box and taking a peek at my new goodies, I was amazed of the quality that is put into the manufacturing of the parts Steeda offers. IRS Bushing from Steeda is a must if you're looking to eliminate more the 50% of the wheel hop. It's great quality and definitely helps put the power to ground. When hitting it and shifting from 2nd to 3rd it's a whole new feel and it just takes off.
Did you find this helpful?  5 of 5 Found Helpful
It's a HUGE difference from the relatively vague/floaty stock PP setup
The G-Trac brace made a big difference in ability to turn in with exactitude on my PP-equipped GT, albeit modified with Steeda springs and sways. The back end of my car got where I needed it with Steeda springs, sways, bushing mounts and vertical links. The car now steers beautifully, doesn't roll, doesn't pitch on acceleration or dive under braking, and the front-to-rear grip is matched, yielding great confidence to place the car right where you want it on corner entry, mid turn, and exit. The G-Trac brace's effect on steering was both noticeable and transformative. It's a HUGE difference from the relatively vague/floaty stock PP setup. I'd say it even rides better without those stock PP undulations. I did not feel the need for the rear brace after the bushing mounts and vertical links (put on after everything else), but that's not to say that the chassis wouldn't improve yet more from it; I'm still considering doing it. It's just that the car feels perfect right now for hard-ass canyon carving and everyday use.
Did you find this helpful?  3 of 3 Found Helpful
So far, the best improvement to the car
I had these installed on our 2015 GT Premium automatic (3.55 gears) with the 20 wheel/tire package and had the bars installed on the third day of ownership. My wife can not, and will not, drive a manual transmission, and the Performance Package was not available with the automatic transmission and could not be checked off as an option when we placed our order for the car in early November 2014. We waited for Ford to build it, ship it, and finally took delivery in late December 2014.. The Steeda bars have transformed the car from just fun to a great handling car, both street and at the track. The install wasn't expensive and the improvement over the stock bars was easy to feel as you entered or exited turns yet the ride remained comfortable even with the 35 series tires. My wife now enjoys the car so much more...and she has learned to appreciate a good handling car that will not jounce your neck and back, yet lets her have fun every day. So far, the best improvement to the car yet and both of us are happy.
Did you find this helpful?  1 of 1 Found Helpful
GTPP 5.0 - my bounce is virtually gone
I also have a nearly loaded GTPP 5.0 and my bounce is virtually gone. My wife now says the car in enjoyable to ride in. The springs and sway bars work in tandem to reduce/eliminate the bounce. I have put my car through some pretty bouncy roads and a few tight twisty roads and the thing rides like it is on rails. If there is any roll I am not feeling it and bounce, gone. The one set of railroad tracks near our home would cause the car to bounce violently. Since putting the springs and sways on, no bounce, just a smooth pass over them. And last you are right, getting the wife's approval has made the next mods easier to justify. Enjoy the ride!
Did you find this helpful?  3 of 3 Found Helpful
wheel hop on my car is 100% eliminated
A couple of months ago, I started looking into overhauling the suspension of my 2015 GT PP. Up to that point, I had put about 7000 miles on my Mustang which allowed me to get a good sense of the issues with the IRS and overall suspension in stock form. Specifically, I wanted to stiffen up the entire rear end and eliminate the dreaded wheel hop while keeping NVH as close to the stock levels as possible. I also decided to replace the stock PP springs and sway bars in order to improve the overall handing, reduce body roll/brake dive and get rid of the bouncy ride. After going through a ton of feedback on the various solutions from the aftermarket (a lot of which came from fellow mustang6g members), I decided to go with Steeda. Below are the parts I chose to go with. Differential Bushings (Red/Street) Subframe Alignment Kit Subframe Bushing Support Vertical Links Rear Toe Link Subframe Suport Braces Linear Sport Springs Front and Rear Sway Bars and Billet Sway Bar Mounts Bumpsteer Kit I already had the Extreme G-Trak Brace installed. Now to the most important part...the results. The handling of the car is on a whole different level after the suspension upgrades. Minimal pitch and roll during braking, turns and transitions. Overall, the entire car is very tight with much better turn in. As expected, the biggest improvement is the rear end. The power delivery through the IRS is fantastic. The wheel hop on my car is 100% eliminated. The rear tires feel as if they are glued to the ground. Coming out of corners, I am able to get on the throttle earlier and more aggressively without any drama. In terms of NVH, I hear some gear whine in 6th gear under minimal throttle between 75 and 80mph (windows closed/stereo off) as a result of the differential bushing inserts. Apart from that, I can't tell a difference compared to stock. Even the ride quality feels great. My fiance couldn't tell that anything had been done to the car. Overall, I am very happy with the results. Props to Steeda for the excellent work they have done. In the near future, I am looking forward to adding a quality set of performance shocks/struts and hitting the road course.
Did you find this helpful?  1 of 1 Found Helpful
Suspension - Wife approved!
I can't tell you how much grief my wife has given me over my decision to lower my S550. In her defense, I've lowered my last 3 cars and made all of them to the point she hated to ride in them. The last one I even tried 2 sets of springs and 3 damper solutions. It got a barely livable rating from her on the final setup on that car. I just got the Steeda Progressive lowering springs installed, along with the front and rear sway bars with billet mounts. I've heard others here say good things so we were optimistic, well at least I was. I think I may have over-sold it just a little based on comments I heard. It didn't completely get rid of the bumps but they are much better. I'm not talking about bumps like bridge buckles, they are VERY nice now, way better than stock. I'm talking about the aggravating bouncing my EB PP had just riding down the highway. I'm not saying it doesn't bounce, it's still there but better. That alone to me is AMAZING! I lowered the car, the handling is FANTASTIC now AND at the same time, the ride got BETTER! I gotta say I'm still SHOCKED! I was to the point that I just believed that with the reduced spring travel you will always have a rougher ride. The fact that my wife actually likes the ride better now to me is INVALUABLE! It means that spending money for the next mod will bring less scrutiny. The car looks so much better lowered. I can't really say how much of the handling is attributable to the springs since I did the sway bars at the same time but the combination is just fantastic! Thank you [email protected] for the recommendations!
Did you find this helpful?  2 of 2 Found Helpful
Car feels like a go kart now
Car feels like a go kart now compared to the body roll OEM had. The Steeda sway are freaking awesome
Did you find this helpful?  3 of 3 Found Helpful
The ride is amazing, to be honest
The car sits perfect with these springs. The ride is amazing, to be honest. The nose dive on braking has been reduced great,y. The car is very flat when cornering and just begs to be pushed more and more. One thing that seems to have greatly improved is the response of the initial turn in. It is very, very responsive. I assume it's a combo of the springs and sway bars but not sure which contributes more to it? I set the front sway bar on the 3rd setting, one away from the firmest and the rear one is set on 2, one away from the firmest.
Did you find this helpful?  5 of 5 Found Helpful
I'm officially a believer!
Ok. So I know everyone has already made threads about their Steeda stuff, but I'm officially a believer! Springs Sway bars Sway bar Billet Brackets Vertical Links Toe Arms Bump steer kit G-Track Brace IRS bushings MMR Camber Plates Performance wheel alignment The car is a go kart. Set the front sway bars to the center and rear to the lower settings, entry high speed turn is predictible, so much so I haven't learned the limits yet. The ass can be easily manuvered with throttle (Race mode/traction off). The body roll seems like it's gone (once the track wheels/tires come in I'll know for sure), it's unreal, I am in LOVE with the car now. This is the way it should've come from the factory for the PP cars. Really a learning curve, since now everything is souch more compossed. The IRS bushings and arms drastically changed the feel of the car on take off, the power actually goes to the tires (which I spin even easier now, even with camber still within factory specs.) There's not that feeling like the IRS wasn't properly fastened, it feels like it's built in to the body. Such a great mod. I'm ordering the IRS brackets as well, but I don't see how it can really improve further. It that good!! Steeda has my vote!
Did you find this helpful?  1 of 1 Found Helpful
Great product! Its amazing the difference in the size of he oem vs. the Steeda! Great Install but I will warn you the bolt on the right facing the car is very hard to get at since the alternator is so close I would suggest using a ratchet wrench through the wheel well. I ended up tearing out the threads and had to tap and re-thread the threads which included removing the Alternator all together along with the serpentine belts in order to get the dye kit enough space to cut new threads. Once they where in and everything was put back together we took it for a test drive in some corners and in combination with my steeda Strut tower and x-brace the car is now a go-kart that can tackle any corner!! Great product with amazing results!!
Did you find this helpful?  1 of 2 Found Helpful
Nice little project with great benefits!
I installed mine today. The front bar removal wasn't nearly as bad as I thought it would be. Just pull then check where it's hung up, move it past the obstruction, then pull and repeat. Comes right out. We still have crappy driving conditions (20 deg when I test drove) so I didn't push it but you can tell the ride is great - not far off stock with the middle stiffness setting. Nice little project with great benefits! This thing's starting to feel like a genuine performance car.
Did you find this helpful?  2 of 2 Found Helpful
Steeda Sway Bars Review
I have now owned and tested the Steeda front/rear sway bars for a few weeks and I think it's time for a review! When thinking about what to purchase for a new car, some modifications come to mind sooner than others like intake, exhaust, and tune. I took a different approach this time with my S550 and decided to start in a different area, suspension.
Did you find this helpful?  1 of 6 Found Helpful
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