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Ford Performance Street Front & Rear Sway Bar & Spring Kit (15-19 GT Fastback w/o MagneRide, EcoBoost Fastback w/o MagneRide)

Market Price $794.55 You Save 12% ($91.41)
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$703.14 (kit)

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  • Item 389956

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    Features & Details

    • Aggressive Stance
    • Improved Handling
    • Maintains Desirable Ride Quality
    • Front and Rear Drop - 1.0"
    • 36.5mm (1.43") Diameter Front Sway Bar
    • 25mm (0.98") Diameter Rear Sway Bar
    • Street Lowering Springs
    • Includes Jounce Bumpers
    • Fits 2015-2019 GT and EcoBoost Fastback Mustangs without MagneRide Suspension
    Enhanced Handling. Give your S550 Fastback a suspension overhaul and gain precision handling with a Sway Bar and Spring Kit from Ford Racing. Improve steering response, decrease body roll in corners, reduce squat during acceleration and diminish excessive nose-dive under hard braking are just a few of the benefits you'll see by installing this handling package. Offered in one convenient kit, you can turn your 2015-2019 GT or EcoBoost into a corner carving machine in no time.

    Sway Bar Kit. Constructed from heavy duty steel for superior strength and durability, the included 36.5mm Front Sway Bar and 25mm Rear Sway Bar will diminish dreaded body roll, improve responsiveness while steering and enhance handling performance. Both sway bars are completed in a Ford Racing blue finish, offering superb corrosion resistance and impressive good looks.

    Street X-Springs. The Street Springs found in this kit are designed to work in unison with the upgraded Sway Bars, offering all-around improved handling dynamics. With an approximate 1" drop at all four corners, these X-Springs will lower your Fastback's center of gravity and allow you to feel more in control of your S550. Not only will handling improve, the one inch drop is perfect to help eliminate the 4x4 look most Mustang owners despise. These progressive rate Street Lowering Springs will deliver an aggressive stance to your GT or EcoBoost without sacrificing any ride quality.

    Improved Ride Comfort. To take this handling package one step further, Ford Racing includes front and rear Jounce Bumpers that aid to maintain a pleasant ride quality. They look very similar to the factory bumper stops, but they're made of a softer compound. When they compress, they'll release slower than stock to provide a less violent chassis reaction when the vehicle bounces off of them.

    Clears Stock and Aftermarket Wheels & Tires. The Street Springs in this package will be compatible with factory size wheels and tires. They also fit when using a pre-configured AmericanMuscle GT or EcoBoost Wheel and Tire Combo Kit, which will ensure proper clearance with no rubbing issues.

    Application. This Ford Racing Street Sway Bar and Spring Kit is specifically designed for use on 2015-2019 GT and EcoBoost Fastback Mustangs that is not equipped with the MagneRide Suspension. Does not fit Convertible or V6 models.

    Fitment: 2015 2016 2017 2018 2019 Details

    MPN# M-5700-MA

    CA Residents: WARNING: Cancer and Reproductive Harm -

    What's in the Box
    • (1) 36.5mm Front Sway Bar
    • (1) 25mm Rear Sway Bar
    • (4) Street Lowering Springs
    • (4) Jounce Bumpers
    • Sway Bar Bushings & Mounting Hardware
    Installation Info
    Tech Specs
    Will it fit my Mustang?

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    Questions & Answers (10)

    5 Top Rated Questions

    Does a 2018 performance pack ecoboost already have this kit with the exception of the lowering springs?

    • This will be what comes factory on the Performance pack models yes.

    Helpful (1)

    Are these solid bars like stock ones or tubular(hollow) like Eibach?

    • The sway bars in this kit will be tubular.

    Helpful (1)

    Do you have a suspension package available for a 2015 GT Convertible? It looks like all of your suspension packages do not fit the convertibles. Thank you.

    Will this kit work on my 2016 Ford Mustang Eco-boost premium?

    • The Ford Performance Street Front & Rear Sway Bar and Spring Kit will fit all Fastback 2015-2017 GT and Ecoboost Mustangs, including your 2016 Mustang Ecoboost Premium.

    Helpful (0)

    Will this kit work if I'm running the AM 19" rim with 305's in the rear and 255 in the front

    • That will indeed all fit together!

    Helpful (0)
    Post Your Question
    5 More Questions
    I have two questions. First, I have a 2015 GT Premium convertible, and this and other sway bar and lowering kits on your pages apparently don't fit the convertible; and yet my Ford dealer up here in Canada has ordered it (M-5700-M) for my car. The guy knows my car and knows it's a convertible, so I'm confused. Should I question him about that more explicitly? Second, I have 20 inch wheels on my mustang. Will this kit lower the car too much for that size of wheel? What problems might I expect if any because of that? 1 answer
    I have a 2015 GT automatic. Love the car except for ride quality which is very "bouncy", especially over undulations in the pavement. Would this product help smooth the ride and decrease oscillation or is the stock suspension better for overall comfort? 1 answer
    I have a 2017 S550 on order with the performance package. I'm putting a supercharger on it and want to reduce the jerking when I shift that comes from the stock suspension. Would this set up suffice if I'm not planning on tracking/racing my car? Or should I go for the complete ford performance suspension kit to reduce roll and jerking? I should mention I would like to still use the different driving modes if possible. 1 answer
    OK this maybe a stupid question. I have a 2015 GT Premium what would be the point of installing this suspension over the Ford Performance Full Suspension kit? Wouldn't it just make sense to spend a few dollars more for a kit with everything included? Thanks 1 answer
    will 1inch lowering with this kit require c/c plates? how much change will there be to camber? is there any allowable adjustment with performance package set up? thanks 1 answer

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    Customer Reviews (5) Write a Review

    Overall Rating 4.2

    out of 5 stars

    Installation Time:Weekend

    Installation Cost:$250-$500

    • Handling Improvement 4.25 4.3
    • Fit 5 5
    • Bang For Your Buck 4.75 4.8

    • 3/5

      Installation Time: Afternoon

      April 25, 2018

      Lower springs

      Great price, it didn't lower the car as much as expected.


      Year: 2018 Submodel: GT

      Helpful (7)

    • 4/5

      Installation Time: Shop Install

      Installation Cost: $250-$500

      February 05, 2018

      Daily Driver Friendly

      Drop is around 1 inch all around and is perfect for daily driving here on the rough streets of LA. The drop is mild but works as advertised. The sway bars are thicker than the stock, non performance ones and looks good too. Handling is better; not rough but tight/firm. I do not scrape since it's only an inch.


      Year: 2015 Submodel: EcoBoost

      Helpful (8)

    • 4/5

      Installation Time: Shop Install

      Installation Cost: $250-$500

      January 28, 2018

      Sits just right.

      Car rides and sits very well. Handling characteristics are better than stock.


      Year: 2017 Submodel: GT

      Helpful (7)

    • 5/5

      Installation Time: Afternoon

      October 22, 2017

      Ford Performance

      Had the springs and sway bars installed by my local shop. the sway bars are a lot more rigid than the factory ones, and much lighter in weight. The springs lowered the car as advertised, and firmer when driven hard.


      Year: 2017 Submodel: GT

      Helpful (9)

    • 5/5

      July 27, 2016

      Lower to the ground!

      After installing these, you will notice big difference in you ride. Ride is very comfortable and feels like your are sitting on the ground. Cornering is a lot easier.


      Year: 2016 Submodel: Ecoboost

      Helpful (8)

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