Steeda's S550 Build Your Own Suspension Package (2015-2019 Mustang)

Steeda's S550 Build Your Own Suspension Package (2015-2019 Mustang)
$150.00 (16%)

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Steeda Springs
Shocks and Struts help
Steeda Billet Rear Shock Mounts help
Steeda Camber Plates help
Steeda Adjustable Bumpstops help
Pre-Assembled help


Looking for the best suspension package for your 2015-2018 Mustang, pre-assembled by the industry's most skilled and winning Performance Experts? Look no further than Steeda's Build-Your-Own-Suspension-Package! 


Step 1. Select your Springs

Steeda Minimum Drop (Street)

Drop (in): 0.5 Front, 0.5 Rear

Spring Rate (lb/in): 200 Front, 750 Rear


Steeda Drag Springs (Street/Track)

Drop (in): 0.625 Front, 0.625 Rear

Spring Rate (lb/in): 150 Front, 750 Rear


Steeda Ultimate Handling Springs - Dual Rate (AutoX/Track)

Drop (in): 0.75 Front, 0.75 Rear

Spring Rate (lb/in): 220-350 Front, 800-1200 Rear



Steeda Ultralite Extreme Springs (Street)

Drop (in): 2.0 Front, 2.0 Rear

Spring Rate (lb/in): 225 Front, 800 Rear


Steeda Ultralite Sport Springs - Linear (Street)

Drop (in): 1.125 Front, 1.0 Rear

Spring Rate (lb/in): 200 Front, 800 Rear


Steeda Sport Springs - Progressive (Street/Track)

Drop (in): 1.125 Front, 1.0 Rear

Spring Rate (lb/in): 145-225 Front, 525-820 Rear


Steeda Sport Springs - Linear (Street/Track)

Drop (in): 1.0 Front, 1.0 Rear

Spring Rate (lb/in): 200 Front, 800 Rear

Step 2. Select your Shocks/Struts

Steeda Pro-Action Adjustable Shocks & Struts - Adjustable

These dampers feature street and track-proven technology which have been methodically tested and tuned to achieve optimum compression valving, giving you that quick sports car reaction on the road with easily adjustable rebound damping at the twist of a knob. From soft and comfortable to stiff and aggressive, these Pro-Action shocks have more adjustability than you will ever need!

Steeda Pro-Action Adjustable Shocks & Struts - Non-Adjustable

Looking for a cost effective alternative to adjustable shocks and struts? Here is the answer. Steeda's new Pro-Action fixed valve shocks and struts for the S550 Mustang GT, V6 and EcoBoost. Steeda's Pro-Action shocks and struts were engineered by Steeda and manufactured to provide the ultimate in ride quality and handling while exceeding OE standards for durability and build quality. Pro Action shocks and struts come with a limited lifetime warranty against manufacturing defects and are perfect for daily street driving or open track use.

Step 3. Shock Mounts

Made from billet 6061 aluminum, these mounts are designed to replace the weak cast factory units. Unlike the factory mounts that have a rubber bushing that binds and will deteriorate over time on lowered cars or cars with aggressive shock settings, these units feature a Steeda spec stainless steel spherical Teflon lined bearing for optimum performance and control. Steeda also designed this kit to provide 1/4 more clearance for wide rear tires! 

NOTE: When selecting a shock mount, adjustable shocks and struts must be paired with the adjustable shock mounts for proper fitment. When selecting a shock mount, non-adjustable shocks and struts must be paired with the non-adjustable shock mounts for proper fitment.

Step 4. Camber Plates

Our Steeda S550 Mustang Camber Plates for Mustang GT, EcoBoost, and V6 are great for both street and track use. Our camber plates come into play especially when lowering your vehicle. With the addition of our new adjustable strut mounts on your lowered 'Stang you will be able to correct excessive negative camber and increase your front steering response. If you lowered your daily driven S550 Mustang, running the correct camber will eliminate uneven tire wear. 

We highly recommend Camber Plates for any 2015-2018 Mustang for proper alignment and the best performance.

Step 5. Bumpstops

Designed and engineered in-house specifically for the S550 Mustang, these bumpstops are made from high-impact polyurethanewhich make them stiffer than factory and prevent damage to the shocks, and other suspension components. The adjustable feature gives the customer the ability to use the kit on a stock or lowered ride height vehicle. This means notrimming of the factory bumpstops in order to maintain a safe and quality ride on lowered vehicles.

Step 6. Pre-Assembly

Have your suspension kit Pre-Assembled and ready for installation without the need for expensive speciality tools. Includes Strut Bearing, Dust Cover, and Spring Isolator. Assembly is performed by Steeda Technicians. Your new suspension package is shipped, ready for a quick installation using basic tools.

NOTE: For fully assembled kits, shock mounts, camber plates, and bumpstops are required. For front only assembled kits, camber plates and bumpstops are required. For rear only assembled kits, shock mounts and bumpstops are required.

Note: Please contact us for MagneRide equipped vehicle applications.


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Fitment & Features


Manufacturer: Steeda Autosports

Vehicle Fitment:

Fits Model Year: 2015, 2016, 2017, 2018, 2019
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More races are won...more track records are set...and more championships are captured with vehicles using Steeda performance parts than any other brand.

Steeda, the world's largest aftermarket manufacturer of Ford performance equipment, is the leader in parts and upgrades for Mustang, Fusion, Fiesta, Focus vehicles, F-150 trucks and more. With over 4,000 items, including Steeda Manufactured Suspension/Chassis components, Induction/Cold Air Intakes and Shifters, is your one-stop for performance parts, accessories, modifications and tuning.

Our performance parts and accessories are built by true performance enthusiasts who are dedicated to the craft they love. Steeda is the culmination of over 30 continuous years of racing history, product innovation and continuous automotive refinement driven by a passion for performance and a love for great design. At Steeda, we share a wealth of our motorsports expertise and ISO 9001:2008 Certified processes in the design, engineering, and manufacturing of our performance parts to bring a completely new level of performance and excitement to every vehicle equipped with our parts. Parts are manufactured at our Steeda Valdosta Georgia complex, home to most modern and up-to-date aftermarket facility in the world.

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