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Eibach Sport-Plus Suspension Kit (15-19 EcoBoost w/o MagneRide, V6)

Market Price $832.22 You Save 10% ($83.22)
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$749.00 (kit)

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  • Item 390361

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    Features & Details

    • Aggressive Stance
    • Lowers Center of Gravity
    • Eliminates Body Roll
    • Sportline Springs and Front & Rear Sway Bars
    • Progressive Spring Rate
    • Estimated Drop: 1.5" Front, 1.3" Rear
    • 35mm Tubular Front Sway Bar
    • 25mm Tubular Rear Sway Bar
    • 3-Way Adjustable Sway Bars
    • Clears Stock and Aftermarket Wheels & Tires
    • Professional Installation Recommended
    • Fits 2015-2019 V6 and EcoBoost Mustangs without MagneRide Suspension
    Aggressive Handling. For the serious driving enthusiast seeking an unmistakable race car feel, the Sport-Plus Suspension Kit from Eibach delivers. The performance springs and adjustable sway bars improve handling for better grip, especially during hard cornering. Plus, the lowered body of your Pony provides a more aggressive appearance both on and off the track. Whether you're installing the Eibach Sport-Plus Kit with factory or aftermarket performance dampers, it's been engineered and tested to deliver balanced handling precision.

    Lower Center of Gravity. This is key. With a lower center of gravity, you're going to reduce squat when accelerating, body roll when cornering and nose dive when braking. As the laws of physics tell us, lowering your car improves the aerodynamic properties of your ride, resulting in reduced drag and greater speed.

    Sportline Springs. Eibach's Sportline Springs feature a progressive rate that delivers maximum street performance, without compromising safety or ride quality. Designed to lower your S550 approximately 1.5" in the front and 1.3" in the rear, the extreme performance of these lowering springs is equally matched with exceptional style.

    Adjustable Sway Bars. Eibach fabricates their Front and Rear Sway Bars from cold-formed, aircraft-grade steel for high quality performance. The 35mm tubular front bar and 25mm rear bar are 3-way adjustable, which lets you fine tune your V6 or EcoBoost Pony to best suite your personal driving needs. Both bars are completed in a bright red powdercoat finish for superior looks and durability.

    Kit Components. The Sport-Plus Kit by Eibach includes front and rear Sportline lowering springs, front and rear adjustable sway bars, polyurethane bushings and all of the required hardware needed for installation.

    Clears Stock and Aftermarket Wheels & Tires. This Suspension Kit was engineered to be compatible with your stock size wheels and tires, as well as AmericanMuscle's pre-configured wheel and tire combo kits (specific to your generation), to assure proper clearance with no rubbing issues.

    Professional Installation Recommended. Seeing that a spring compressor is required for installation of these Coil Springs, AmericanMuscle recommends professional installation. With the proper tools, installation can be completed in about three hours. Please note that an alignment is highly recommended after installation.

    Application. This Eibach Sport-Plus Suspension Kit is an ideal upgrade for all 2015-2019 V6 and EcoBoost Mustangs that is not equipped with the MagneRide Suspension.

    Fitment: 2015 2016 2017 2018 2019 Details

    MPN# 4.14735.880

    CA Residents: WARNING: Cancer and Reproductive Harm -

    What's in the Box
    • (2) Sportline Front Lowering Springs
    • (2) Sportline Rear Lowering Springs
    • (1) 35mm Front Sway Bar
    • (1) 25mm Rear Sway Bar
    • (4) Polyurethane Bushings
    Installation Info
    Tech Specs
    Will it fit my Mustang?

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    Questions & Answers (2)

    2 Top Rated Questions

    What is the widest tire that these will allow and still have clearance?

    • This will depend on the size of the wheels you have on your vehicle. Please reach out directly to our customer service department via our live chat feature, email at, or by calling 1-855-209-8876 we need to find some additional information about your vehicle before making a recommendation and would be glad to help assist you with this build!

    Helpful (0)

    Will this fit a 2017 ecoboost convertible?

    • This will fit a 2017 EcoBoost convertible.

    Helpful (0)
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    Customer Reviews (2) Write a Review

    Overall Rating 5

    out of 5 stars

    Installation Time:Full Day

    • Handling Improvement 4 4
    • Fit 5 5
    • Bang For Your Buck 5 5

    • 5/5

      Installation Time: Full Day

      May 16, 2017

      The look is awesome.

      Installed this last weekend and although it took longer than expected, it really looks great. Haven't had a chance to try out the handling aspect yet, but it does have a definite aggressive feel now.


      Year: 2016 Submodel: EcoBoost

      Helpful (12)

    • 5/5

      September 01, 2016

      Handles and drives like a dream

      I was able to do the install myself so no hassle there. However upon driving it you immideately notice the improved handling of the s550 tremendously!!! And the springs lowering my car gave it the final touch of aggressiveness i needed! The car looks and handles like a true sports car now! Very pleased!! If your on the fence about buying this kit think no more! Just buy it!!


      Year: 2015 Submodel: V6

      Helpful (21)

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