Steeda Mustang EcoBoost Sport Lowering Springs - Progressive (2015-2022)

14 Review(s)
$29.00 (9%)
2015+ Steeda Mustang EcoBoost Sport Lowering Springs - Progressive. Lowers your 2015+ Ford Mustang 1.125" in front and 1" in rear. Steeda Mustang Springs provide the best combinations of handling and ride quality available. Get the proven performance of Steeda suspension parts, tested on and off the track for over 30 years.

Part Number: 555 8212

Choose Options

Write a Review

Suggested Mods


Springs are the foundation of good handling and ride quality. So start with the best springs for your 2015+ Ford S550 Mustang EcoBoost, built by the company that specializes in vehicle dynamics and your Mustang!

Our experience and expertise in high performance street and racing suspension systems is second to none - Put that experience to work for you. Steeda springs are all in house engineered and custom made to our exact specifications. Steeda springs were developed using advanced proprietary CAD data, and our exclusive 3d modeling setting us apart from the others.

These Steeda Mustang Sport Progressive Springs optimize the center of gravity and suspension geometry creating a huge improvement in handling with a noticeable reduction in nose dive, launch squat, and body roll, while still maintaining an outstanding ride quality for daily driving.

Steeda springs provide the best combinations of handling and ride quality available!

Note: These Steeda Mustang Sport Springs - Progressive will clear 20" wheels. Convertible models will require 3/8" rear spring spacer

Product Benefits

  • Lowers your 2015+Mustang 1.125" in front and 1" in rear
  • Clears 20" wheels
  • Great ride quality, improved aerodynamics and improved vehicle stance
  • Sharper steering response, improved vehicle handling and stability, noticeable reduction in nosedive
  • These progressive springs will provide an exceptional ride quality and as roll increases, it increases the spring rates
  • Fits coupe and convertible w/ 3/8" rear spring spacers
  • Comes with a LIFETIME warranty

Purchase your Steeda Mustang Sport Springs - Progressive for your Mustang EcoBoost at Steeda Autosports today!

Note: Lowered amount may vary from car to car depending on vehicle package and trim options.

CA Residents: Cancer and Reproductive Harm WARNING

Hi everybody Brian from Here today to talk to you about our Steeda S550 Mustang Sport Progressive Lowering Springs. Our Sport Progressive Springs are the most popular springs we offer for the S550 Mustang, and there's a great reason for this. It's because they are phenomenal for daily driven cars. Yet they increase performance. You may wonder how in the world is it that they do that. I'm going to tell you how we do that! Do to the progressive nature of the springs, they start out at a milder rate and then transition or progress into a firmer rate. What this means is, during normal street driving your going to remain in that milder rate so you have a great ride quality, but when you start to push the car some more it's going to transition into the firmer rates. Specifically, the front spring rates range from 145 pounds up to 225 pounds. While the rears range from 525 pounds up to 820 pounds. That's a nice wide range, a nice wide progression from one rate to the other. Now this is important because as you get into sporting driving, as you start to brake hard and the car wants to pitch, these will help prevent nosedive. Likewise, as you're going through the corners and the car wants to roll these will resist, body roll! So you're going to get great handling. Now just as importantly for our drag race guys, when you go to launch your car, the cars not going to squat, it's going to set and it's going to go! In addition to the performance gains, these will lower your car just over 1" at the front and an inch at the back. So you get the perfect rake. If you want to complement that add a set of 20" wheels. The springs will fit both coupes and convertibles. Great ride quality, improved aerodynamics and increased performance. It's no wonder these are our most popular springs. If you enjoyed the content of this video please click like and share it! Subscribe to our YouTube Channel to see more videos like this as well. Be sure and visit us at to learn more about these springs and many of our other great components that we offer for your Mustang and many other Ford vehicles. Don't forget to follow us on Social Media and most importantly, Have a Great Day!
View Full Transcript

Fitment & Features


Manufacturer: Steeda Autosports

Installation Information:

Level of Difficulty: Tech Recommended
Install Time: About 4 Hours
Tools Required: Basic Shop Tools
Print Instructions: Installation Instructions

Vehicle Fitment:

Fits Model Year: 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022

Customer Reviews

Rating Snapshot

Select a row below to filter reviews.


Average Customer Ratings


My stang
The springs gave my car a great look, with the sway bars gives it amazing handling. I'm curious if after a few years they have lowered more than an inch in the rear cause the 305 35 20 I put on just barely clear. Yet others seem to clear more
Did you find this helpful?  2 of 3 Found Helpful
Had these installed on my 2016 EcoBoost Performance Package and the ride is everything I expected. Firm and planted in the tight turns. And the look is everything the car needed. I did however need to order the camber bolt kit to get the alignment in spec.
Did you find this helpful?  3 of 3 Found Helpful
Sport Springs Progressive
Absolutely great springs, ride quality is comparable if not better than stock, almost perfect drop to close up the wheel gap without going low enough to worry about hitting things in the road!
Did you find this helpful?  9 of 9 Found Helpful
Verified Buyer  
No more wobbly or bouncy feeling and stance is great.
Helps eliminate body roll and you can really push into the corners a lot better. This is how it should of came with the performance package kit from Ford. No more wobbly or bouncy feeling and stance is great.
Did you find this helpful?  4 of 4 Found Helpful
Thanks for making great products
I get tons of complements on my car and wanted to say thanks! I have used your springs on my 2013 mustang GT and when I bought my 16 the lowering springs was my first purchase! I also added the g trac brace and will be purchasing more suspension parts soon! Thanks for making great products.
Did you find this helpful?  1 of 1 Found Helpful
The car just feels more planted to the road
I've noticed that nose dive on heavy braking is about non-existent now. And while I haven't had a chance to push her hard in the curves, the handling seems to be better. The car just feels more planted to the road.
Did you find this helpful?  3 of 3 Found Helpful
The car now handles like it should have from the factory
I had the Progressives installed yesterday, took the tech f o r e v e r! But patience is a virtue as they say...The drop is puurfect IMO! Not too low but definitely gives the car the look I wanted. I had an opportunity to see just how the Springs perform this morning, the roads I take to work are windy, curvy, hilly, an enthusiast's dream. The car now handles like it should have from the factory, I couldn't be more pleased.
Did you find this helpful?  3 of 3 Found Helpful
Love them
I just installed the Steeda Progressive springs a few weeks ago and love them. The car rides so much better and even handles better. Improvement all the way around. Once you go Steeda you never go back!
Did you find this helpful?  1 of 1 Found Helpful
I now have ZERO wheel hop!
I forgot to update this after installing the Steeda springs and wheel hop kit, I've had them on for a couple weeks now. I'm loving the look with the springs, and there is definitely a noticeable difference in handling. Ride quality suffers a little, but it's not terrible. The wheel hop kit (IRS subframe bushing support system) does exactly what it's advertised to do, I now have ZERO wheel hop!
Did you find this helpful?  1 of 1 Found Helpful
Suspension - Wife approved!
I can't tell you how much grief my wife has given me over my decision to lower my S550. In her defense, I've lowered my last 3 cars and made all of them to the point she hated to ride in them. The last one I even tried 2 sets of springs and 3 damper solutions. It got a barely livable rating from her on the final setup on that car. I just got the Steeda Progressive lowering springs installed, along with the front and rear sway bars with billet mounts. I've heard others here say good things so we were optimistic, well at least I was. I think I may have over-sold it just a little based on comments I heard. It didn't completely get rid of the bumps but they are much better. I'm not talking about bumps like bridge buckles, they are VERY nice now, way better than stock. I'm talking about the aggravating bouncing my EB PP had just riding down the highway. I'm not saying it doesn't bounce, it's still there but better. That alone to me is AMAZING! I lowered the car, the handling is FANTASTIC now AND at the same time, the ride got BETTER! I gotta say I'm still SHOCKED! I was to the point that I just believed that with the reduced spring travel you will always have a rougher ride. The fact that my wife actually likes the ride better now to me is INVALUABLE! It means that spending money for the next mod will bring less scrutiny. The car looks so much better lowered. I can't really say how much of the handling is attributable to the springs since I did the sway bars at the same time but the combination is just fantastic! Thank you [email protected] for the recommendations!
Did you find this helpful?  7 of 8 Found Helpful
It's amazing
I installed my Steeda progressive springs tonight, not a bad install, took a little over 2 hours. It's amazing the difference in appereance the springs made, and even a bigger difference in handling! Just a quick pic I took when I backed it out of the shop, I'll get some better pics this weekend when it's cleaned up and the springs have settle down. Thanks David @ Steeda
Did you find this helpful?  1 of 1 Found Helpful
What I did notice immediately was how easily keep it is to spin the rears now as the stiffer springs transmit the torque straight to the tire. Fun!
Did you find this helpful?  1 of 1 Found Helpful
Very impressed with them
I'm very impressed with them so far. They are just a little firmer than stock but really control roll and nose dive. They seem like the perfect spring for a daily driver.
Did you find this helpful?  1 of 1 Found Helpful
The ride is amazing, to be honest
The car sits perfect with these springs. The ride is amazing, to be honest. The nose dive on braking has been reduced great,y. The car is very flat when cornering and just begs to be pushed more and more. One thing that seems to have greatly improved is the response of the initial turn in. It is very, very responsive. I assume it's a combo of the springs and sway bars but not sure which contributes more to it? I set the front sway bar on the 3rd setting, one away from the firmest and the rear one is set on 2, one away from the firmest.
Did you find this helpful?  2 of 2 Found Helpful
There are no reviews for this product!

Related Items

123123 - -1
Back to TOP
0 Items