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  1. Ford Performance M-5300-W W Lowering Springs (2015-2020 GT350 / 2015-2020 Mustang GT w/Magneride)
    $315.00

    Fits 2015-2017 Mustang GT350 and GT350R
    Gives a more aggressive-looking stance, as well as increased handling dynamics yet maintains excellent ride quality
    Lowers car approximately 20 mm front and rear
    Works with both standard and MagneRide suspension systems
    Designed to work with production struts, shocks and sway bars
    May cause slightly harsher ride when compared to stock springs
    Learn More
  2. Ford Performance M-5300-XA Street 1" Lowering Spring Kit (2015-2024 Mustang Non-Magneride)
    $365.00

    Fits 2015-2020 Mustang GT and 2.3L EcoBoost Coupes
    Designed to work with production struts, shocks and sway bars
    Lowers car approximately 1.0"
    Gives a more aggressive-looking stance, as well as increased handling dynamics yet maintains excellent ride quality
    Highest quality manufacturing - produced by OEM spring supplier
    Includes M-5570-B jounce bumpers
    May cause slightly harsher ride compared to stock springs
    Note: Does not work on vehicles equipped with MagneRide suspension systems.
    Note: Please reference a Ford service manual for installation information and correct torque specifications. May require alignment after installation
    Learn More
  3. Ford Performance Track Lowering Spring Kit (2015-2024 Mustang GT & Ecoboost Coupes without MagneRide) - M-5300-YA
    $306.00

    Features
    Aggressive Muscular Stance
    Improves Handling
    Lowers Center of Gravity
    Estimated Drop: Front - 1.0” Rear - 1.0”
    Clears Stock and Aftermarket Wheels & Tires
    Intended for Track Use Only
    Not Recommended for Use with Factory Shocks and Struts
    Not Compatible on MagneRide Equipped Vehicles
    Fits 2015-2020 GT and EcoBoost Fastback

    Description
    Track Handling. Installing a set of Ford Racing Y-Springs will lower your Mustang's center of gravity, which will reduce squat during acceleration, body roll in the corners, and excessive nose-dive under hard braking. Ford Racing Y-Springs are intended for track use only.

    Aggressive Stance. The Ford Racing Y-Springs not only improve the handling of your S550 Mustang on the track, but they also improve the overall appearance by lowering the ride height approximately 1.0" to eliminate that nasty raised 4x4 truck look for a more aggressive muscle car stance.

    Clears Stock and Aftermarket Wheels & Tires. These lowering springs were 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.

    Required Upgrade. These Ford Racing Track Lowering Springs were specifically designed to work with Ford Racing Shocks & Struts (M-18000-F) and Sway Bars (M-5490-E), it is not recommended to use these Y-Springs with the stock shocks and struts.

    Application. This set of four Ford Racing Track Lowering Y-Springs are designed specifically for use on the 2015-2020 GT and EcoBoost Fastback Mustang models. Does not fit convertible models.

    Technical Note. The Springs are not compatible on vehicles equipped with the MagneRide Suspension.Learn More

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Lethal Performance is a direct authorized distributor for Ford Performance who offers two different styles of lowering springs for your S550. A street version and a track version. The street version is designed to lower the car and provide better handling on the street and track while maintaining excellent drivability. The track version uses different spring rates than the street version does which is aimed more for track use. The track springs still lower the car giving it a more aggressive look but are designed mostly to focus on handling and on-track performance.