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KONI Sport Adjustable Front Strut (15-18 GT, Ecoboost, V6)

Market Price $224.99 You Save 12% ($26.63)
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  • Item 390803
  • MPN# 8741 1589Sport

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    Features, Video & Details

    • KONI Sport Adjustable Front Strut
    • Improves Overall Handling Performance
    • Ideal Upgrade Replacement
    • Twin-Tube Gas Pressure Design
    • On Car Adjustable Rebound
    • Bright Yellow Finish
    • (1) Front Strut - Sold Individually
    • NOT Compatible with MagneRide Suspension
    • Fits 2015 to 2018 V6, EcoBoost and GT Mustangs

    Review & Installation Video

    Review & Install Video

    Hey, guys. Stephanie with, here with the KONI Sport Adjustable Front Strut for 2015 and up S550 Mustangs. The KONI Sport Adjustable Front Strut's gonna be for the S550 owner that's looking for more of a performance strut that'll work for the daily driver that sees the occasional track time. These struts are designed to improve overall handling performance under any demand and still maintain a good ride quality. These are adjustable struts and what that means is that you can adjust the rebound dampening to make it stiffer or softer. And these are on-car adjustable so you can do this without having to take things apart. Your adjustment point's gonna be right here at the top and the strut comes with a hardware pack that contains a knob, which is right here as well. Turning clockwise softens the dampening and counterclockwise stiffens it. The cool thing about this is if you have a street car that you wanna take to the track or the strip or autocross with, whatever it may be, you're gonna have one setting for street driving and another for your performance driving. Besides having adjustable dampening capabilities, these are an upgrade over the factory struts in other ways. The big difference between these struts and the factory struts is that these have a larger diameter piston in them. The larger piston will give better dampening and rebound when you compare it to the stock strut. This means better street performance. These still have the standard twin-tube gas pressure design and a steel body as well. Now as of right now, these are the only adjustable struts for the S550 that are currently available. And normally you'd swap out your struts if they're blown out or if you've lowered your car. In the case of the S550, with it still being so new, I'm gonna guess that you haven't killed your factory ones yet. And depending on how low you've lowered your car, you can get away with running your factory struts for a little while, in all honesty. If you've really lowered your car, though, upgrading to an adjustable strut like this is really gonna be beneficial to you. A strut with this setup is designed to work with lowered cars, so it's gonna ride better than the factory strut will, as long as you have it adjusted properly, that is even if your stock ones aren't blown up yet. This strut's more capable of working better with a lowering spring. It's better suited to work with the firmer spring rates and the lower ride height. The internals of the factory struts are not set up to take the abuse of a lowered ride height like these struts are. When it comes to price, these are sold individually but you can expect to spend under $200 per strut. You can love it or hate it that they're sold individually but I think it's nice, since you're not forced into buying a complete package. And since KONI does have adjustable shocks as well, you can upgrade the front or rear at different times or just one or the other, depending on what you want with your car. It leaves you more room to set your car up and spend your money how you want to, in my opinion. So the install here's not a difficult install. It's all straightforward and you won't need any tools out of the ordinary besides a spring compressor. You will need an assortment of different sockets and wrenches. And if you decide to tackle this yourself, you can expect to spend about an hour for each side minus playing around with the adjustment since that'll most likely take some time and be a trial-and-error type of thing. This is a one out of three wrenches on the difficulty meter. Having a lift is really gonna make things a lot easier here but you can complete the install with a jack and stands. There are a few nuts in the top of the strut tower that will need to be removed but you can leave one loose to hold the assembly into place while you prepare the rest. You can remove that one later after you've removed everything else. You have to disconnect the front sway bar and move the ABS line as well. The caliper does need to be moved out of the way, as well as the rotor if you want more room. Then there's just two nuts on the spindle and the bolts as well. Once the factory strut is out, you need to disassemble some of it and move some items over to the new strut, like the spring, the dust boot, the bump stop, and the mount too. After removing these items, the new strut's ready to go back in the car the same way you removed it. So reinstall the spindle with the strut, the rotor and the caliper, the end link on the sway bar, the ABS line, and the top nuts. Wrapping things up here, the KONI Sport Adjustable Front Strut is an adjustable direct bolt-on upgraded replacement. The adjustment allows you to change your rebound settings to help your car perform how you'd want it to and ride like you want it to but without sacrificing any features or ride quality. As always, I suggest you check out more online for yourself. And for all things Mustang, keep it right here at

    Improves Handling Performance. Do you find the factory installed struts to be a little too soft during spirited driving excursions? Then you should upgrade your S550 Mustang's suspension with a set of Koni Sport Adjustable Front Struts. Koni Sport Struts will improve the overall handling performance of your Mustang while maintaining good ride quality. Sport Adjustable Struts are Koni's top-of-line performance struts that are ideal for daily driven Mustangs that see their fair share of track and autocross use.

    Adjustable Rebound Settings. Koni designed their Sport Struts to be on car adjustable allowing you to adjust rebound dampening with just a twist of a knob. Turn the knob clockwise and soften the dampening, turn it counter clockwise and stiffen the dampening. On car adjustability is great for fine tuning your suspension rebound to match your driving situation, whether its street, performance or track.

    High Quality Construction. Koni's Sport Series Front Struts are a performance upgrade that feature a steel bodied, gas pressurized twin tube design with a larger-diameter piston for optimum street performance. Koni Struts are completed in a classic yellow finish with the world-famous KONI logo for corrosion resistance and good looks.

    Application. This Koni Sport Adjustable Front Strut is designed for use on 2015 to 2018 Ford Mustangs, including the V6, EcoBoost and GT models. Does not fit Shelby GT350 or models equipped with MagneRide. Sold individually.

    Note: Coupon codes cannot be applied to this product.

    Fitment: 2015 2016 2017 2018 Details

    What's in the Box
    • (1) Front Strut
    Installation Info
    Tech Specs
    Strut Specifications
    Placement: Front Adjustable: Yes
    Year: 2015-2017 Model: V6, EcoBoost, GT
    Manufacture: Koni Material:


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    4 Questions / 4 Answers

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    Hello, Would I need to replace the strut mounts when installing koni struts and lowering springs? Thank you


    • The KONI Sport Adjustable Front Struts can be installed with factory strut mounts.


    Helpful (0)

    I current have Eibach pro lowering springs and went to get an alignment done, and it couldn't be aligned because the factory strut had to be grinded down. Will these struts allow for proper alignment?


    • The KONI Sport Adjustable Front Strut will help with the springs. However, if you do not have any caster camber plates (link below) you may want to look into these. These are made to help fix the geometry of the car once it's been lowered.


    Helpful (0)

    How thick is the body of this strut compared to a factory base GT strut? The tires I'm running have very little clearance from sidewall to strut, so I'm concerned any extra thickness in this strut will cause rubbing.


    • The KONI Sport Adjustable Front Strut will share similar dimensions to the OEM struts. You should see no noticeable increase in diameter.

      Rob D

    Helpful (0)

    I have a 2016 Mustang GT Performance Pack lowered with BMR Performance Springs. I want to make the ride of the car more comfortable and softer. Will these Koni struts make the ride more comfortable and softer than the stock performance pack ones? Please let me know what you think. Thanks


    • The KONI Sport Adjustable Front Strut (15-17 GT, Ecoboost, V6) are designed to improve the performance of your car. You will be able to loosen up the ride a little bit since these struts are adjustable but if it is strictly comfort you are looking for, the best ride you are going to get is going to be with the factory suspension.


    Helpful (0)

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    Customer Reviews (11) Write a Review

    Overall Rating 4.6

    out of 5 stars

    Installation Time:Afternoon

    Installation Cost:$250-$500

    • Handling Improvement 4.666667 4.7
    • Ride Quality 4.555555 4.6
    • Fit 5 5
    • Bang For Your Buck 4.444445 4.4

    • 5/5

      Installation Time: Afternoon

      May 16, 2018

      Koni Yellow BMR SP083R

      Just paired these Koni Yellows with the BMR SP083R springs. The handling improvement is very noticeable from the Performance Package suspension. Install was very straight forward. I didn't even have to use a spring compressor when putting the springs on the struts and caster camber plates. I would say these are very manageable for dual use of street and road course.


      Year: 2016 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $250-$500

      May 14, 2018

      Im driving a different car

      It handles incredibly great after installing this set of shocks and struts. I also got the steeda’s stop the hop kit and set of Nitto NT555. All this mods will stop the spinning even with cold tires.


      Year: 2016 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Afternoon

      May 03, 2018

      Great struts

      I installed the shocks along with the Maximum Motorsports caster/camber plates and both front and rear Eibach sway bars. The car already had Eibach Sportline Springs. The handling improved dramatically. I set the sway bars to the middle setting and the shocks to middle stiffness (1 turn from full soft). Initially the ride was a bit harsh but after a few days the struts softened a little and now it is just right. So give them time to break in before adjusting.


      Year: 2015 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Afternoon

      April 23, 2018

      Perfect addition

      I purchased these to go along with a set of CJPP lowering springs and couldn’t be happier. Kept the harshness of lowering springs under control and really completed the suspension for me. Will be playing with the adjustments in the future but for now I set them at 50 and it’s pretty comfortable, yet responsive.


      Year: 2016 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Afternoon

      February 12, 2018

      If you aint first your last

      Springs are a joy to do yourself in the driveway..... but Koni struts are a great improvement from the bent stock struts from the previous owner.


      Year: 2015 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Afternoon

      January 29, 2018

      Just do it!

      I paired these shocks and struts up the BMR auto x springs and what a difference they make. Install was easy with ramps and jackstands, took about 4 hours and we took our time. The car feels extremely planted now. Being able to adjust the stiffness is great, although unlike previous years you will need to jack the rear off the ground to get to the shocks. I have mine around 80 of max stiffness and while it is much stiffer than stock its not unbearable as a daily driver. Quality, fit, and finish is all perfect and as always AM got them out to me in two days.


      Year: 2015 Submodel: GT

      Helpful (1)

    • 4/5

      Installation Time: Afternoon

      July 15, 2017

      Easy install

      Awesome product koni made easy to adjust ride sensitivity haven't driven it long enough to see how it handles in combination with my steeda caster plates and Eibach spring's


      Year: 2015 Submodel: GT

      Helpful (1)

    • 3/5

      Installation Time: Less than 1 Hour

      May 25, 2017

      1 of the 4 installed went bad within 2 months

      I had to pay for another one and return the bad one, along with a shop report to be able to be reimbursed. American Muscle was great, but KoNi should check on their QA much more.


      Year: 2016 Submodel: GT

      Helpful (1)

    • 4/5

      Installation Time: Afternoon

      January 30, 2017

      Koni Sport Adjustable Front rear

      Added ALL of the steeda rear upgrades, including the Steeda Progressive spring. with the stock shocks/etc. the ride was great, then the rear shocks started to leak. so i bought the Koni's Front and Back. The ride got race car stiff. Yes I like the Koni's, but ride is very tight. Not for a everyday L.A. road commute...


      Year: 2016 Submodel: GT

      Helpful (4)

    • 5/5

      September 28, 2016

      Great shocks

      Put these shocks on my 2016 mustang Gt along with eibach sport line springs and they are awesome! I would put them on any vehicle of mine.


      Year: 2016 Submodel: GT

      Helpful (3)

    • 5/5

      September 09, 2016

      Much better than stock strut

      I Bought these with the KONI adjustable rear shocks and with the Vogtland lowering springs and the car feels much better through corners and just gives you a better piece of mind over the stock struts when lowering your car. I would recommend anyone to get the KONI strut and shocks if they are going to lower their car.


      Year: 2016 Submodel: Ecoboost

      Helpful (2)

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