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SR Performance Lowering Springs (15-18 GT, EcoBoost, V6 w/o MagneRide)

Market Price $229.99 You Save 22% ($50.00)
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$179.99 (kit)

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  • Item 387284
  • MPN# 387284

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    Features, Videos & Details

    • SR Performance Lowering Springs
    • Aggressive Lowered Muscle Car Stance
    • Lowers Center of Gravity for Improved Handling
    • Progressive Spring Rate
    • Blue Powdercoated Finish
    • Estimated Drop: Front - 1.0”, Rear - 1.0”
    • Clears Stock and Aftermarket Wheels & Tires
    • Not Compatible on MagneRide Equipped Vehicles
    • Fits 2015-2018 GT, V6 and EcoBoost Mustangs

    Review & Installation Video

    Hey, everybody. I'm Justin with AmericanMuscle.com, and in this video I'm going to be breaking down the new SR Performance Lowering Springs available for your 2015 Mustang. The SR Performance Springs are the latest performance spring offerings for your S550, and in true SR Performance fashion, the price point's coming in a little lower than some of the other offerings available here at AM. That's because the goal of SR Performance is to offer performance and suspension components that will perform as intended, but without breaking the bank. Now, if the S197 SR Performance Lowering Springs are any indication on how these are going to perform, then all 2015 owners definitely want to give these a strong look. The '05 to '14 SR Springs are by far one of the most popular items here at AmericanMuscle.com, and the same qualities that made those so great are carried over to the new springs here for 2015. So, with all of that said, let's get into some of the big points here with these new SR Springs for 2015. Now, you can expect your S550 GT V6 or Ecoboost to be dropped approximately one inch on all four corners using these springs, which, in my opinion, seems to be the magic number here with the new chassis. It's definitely enough to get rid of that ugly wheel gap, of course, but at the same time, it's going to be very daily driver-friendly, meaning you're not going to scrape over every speed bump or pulling into every driveway. If you guys are regular viewers to the channel or to our site, of course, then you know besides looking cool, that lower center of gravity and lower ride height is also going to help you and your 2015 Mustang handle much better, of course. The 2015s, with their new independent rear suspension handle great right out of the box, but it's been my experience that these cars with a set of after-market lowering springs just feel much more playing it to the road. Going over some tech specs quickly with the SR springs...they are a progressive spring, meaning they're going to offer a nice comfortable ride under normal driving conditions, but then will firm up, of course, as they are pushed harder in turns. In addition to that, they will fit both your coupe and convertible S550, in addition to, again, all GTs, V6 and EcoBoost Mustangs. When it does come time to installing your brand new SR Performance Lowering Springs, well, it's a little bit more involved thanks to the new IRS, but really not that bad, overall. If you are attempting this install for the first time, you might want to leave yourself about a half a day in the garage to get everything knocked out. Most importantly here, make sure you have a decent set of tools on hand, and of course, that spring compressor as it will be needed here with this install. As always, guys, I like to recommend, give us a shout here at AmericanMuscle.com, get a Mustang expert on the phone, if you have any more questions about the install or about the SR Springs themselves. So if you're looking to drop your new Mustang, improving not only your looks but also your handling performance, while at the same time not breaking the bank, then be sure to check out the new SR Performance Lowering Springs for your S550, available right here at AmericanMuscle.com.

    Performance Handling. Installing a set of SR Performance Progressive Rate Springs will lower your S550 Mustang's center of gravity, which will reduce squat during acceleration, body roll in the corners, and excessive nose-dive under hard braking. SR Performance Springs are ideal for daily driving, street, and even occasional track use.

    Aggressive Muscle Car Stance. Not only does a set of SR Performance Springs improve the handling performance of your Mustang, but they also improve its overall appearance by lowering the ride height approximately 1.0" eliminating that huge tire to fender gap, for a more aggressive street stance.

    Clears Stock and Aftermarket Wheels & Tires. These lowering springs were engineered to be compatible with your factory 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.

    Application. This set of four SR Performance Lowering Springs are specifically designed for use on all coupe and convertible 2015-2018 Mustangs equipped with independent rear suspension (IRS), including the V6, EcoBoost and GT models.

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

    Fitment: 2015 2016 2017 2018 Details

    What's in the Box
    • (4) Lowering Springs
    Installation Info
    Tech Specs
    Springs Specifications
    Spring Rate: Front: 185-275 lb/in.
    Rear: 800-880 lb/in.
    Usage: Street
    Year: 2015-2017 Model: Coupe/Convertible
    Progressive or Standard: Progressive Estimated Drop:

    1.0"F / 1.0" R

    Will it fit my Mustang?

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    47 Questions / 47 Answers

    Ask a Question

    I will be putting this together with the 19' gt 350 wheels and will be running the recommended tires on a v6, will I need some camber plates as well for alignment or will I be fine?

    PedroP

    • It is recommended to either get caster camber plates or just camber adjustment bolts to get a correct alignment after the vehicle is lowered.

      AMjordan

    Helpful (4)

    I installed these by my mechanic, after a few weeks the rear started to make creaking sounds when moving at slow speeds over any kind of angle or bump. Did they not do something correct or is this normal?

    RaymondB

    • No, The creaking sounds are not normal for this product. The SR Performance Lowering Springs will not provide any noises which will be different from the factory springs.

      AMCoal

    Helpful (3)

    Will i need camber kit to get perfect alignment if I install these springs

    Powerball

    • These SR Performance Lowering Springs will likely not require any additional components because it will only lower the vehicle one inch in the front and rear. If you would like the additional adjustability, we would highly recommend the BMR Camber Adjustment Bolts, item 391005 or the Steeda Front Adjustable Camber Bolts, item 398192. https://www.americanmuscle.com/bmr-camber-adjust-bolts-front-1516.html https://www.americanmuscle.com/steeda-front-adjustable-camber-bolts-15117.html

      AMJEFF

    Helpful (2)

    Hey AM, I have nitto invos 255/35ZR20 97Y in the front, and 275/35ZR20 102W in the back. will those springs fit well and wont cause any tear?

    Kimz89

    • The SR Performance Lowering Springs will clear those tires without any issues yes!

      Ricky36

    Helpful (1)

    I just ordered these springs and can't wait to put them on my 2015 GT, but will my tires rub? I have 20" staggered Shelby rims with 305 Micky Thompsom tires on the rear.

    donkeyman

    • The SR Performance Lowering Springs will work with your build just fine and will not rub. Now going on over bumps or potholes we would recommend being cautious.

      Ricky36

    Helpful (1)

    For GT PP cars, how does ride/handling compare to the current springs on the car? Will these be stiffer or about the same?

    wilbr

    • The SR Performance Lowering Springs will have a stiffer spring rate which will give up ride quality for handling over the OEM Performance Pack springs. Additionally it should be noted that OEM Performance Pack cars do sit lower than a non Performance Pack cars so the full 1.5" of lowering would not be seen on cars equipped with the Performance Pack.

      Rob D

    Helpful (1)

    People Who Bought This Item Also Bought

    Customer Reviews (100+) Write a Review

    Overall Rating 4.7

    out of 5 stars

    Installation Time:Full Day

    Installation Cost:$250-$500

    • Handling Improvement 4.491803 4.5
    • Ride Quality 4.565574 4.6
    • Appearance 4.819672 4.8
    • Bang For Your Buck 4.778688 4.8



    • 5/5

      Installation Time: Afternoon

      July 16, 2018

      great springs for the money

      I put these in my 2017 GT performance Pack. they went in no problem, easiest spring install i've ever done. lowered it right around an inch all around. ride quality didnt change much at all due to PP springs. only difference i notice is harsher bumps you can feel more but not drastic. Overall great product Highly recommend!

      MatthewC

      Year: 2017 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Afternoon

      July 14, 2018

      Good value

      They look and ride amazing. Excellent price point as well!

      JasonB

      Year: 2018 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Afternoon

      July 13, 2018

      Four starts

      I bought this spring and let me tell you they ride better than stock smoother I highly recommend them.

      Tony

      Year: 2018 Submodel: GT

      Helpful (0)

    • 5/5

      July 08, 2018

      Great value, great product!

      I was concerned that these springs would make my mustang ride rough. I drive to work on back country roads. I was surprised after I installed them. It takes the bumps and dips better then it did with the stock springs. I have a 2016 GT, and it took me 3 hours to install them in my driveway. I did have a impact gun, and a spring compressor. I have been working on cars my whole life. It was a easy job. The mustang looks and rides better.

      Michael

      Year: 2016 Submodel: GT

      Helpful (0)

    • 4/5

      July 06, 2018

      Good value

      Overall very happy with theswith springs great value for money. Does not completely eliminate the noise dive but reduces significantly for a 1” drop. Things to keep in mind- definitely get the adjustable camber bolts or plates with these, you will need those on the front as soon as you get an alignment done. The bushings can get noisy with the change in angle- this is what I did: bought ATP re-seal and sprayed it on all rubber bushings then sprayed (generously) seafoam deep creep on all busing contact points. All creaks and squeaks were gone.

      AnkurB

      Year: 2015 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Full Day

      July 02, 2018

      Noticeable Difference in Handling

      This was the first major install ive done to my mustang and the first time ive done suspension work. It did take me a long time because it was my first time. But so worth it. Looks amazing and handles night and day difference. No body roll at all.

      BrennanSincerbe

      Year: 2017 Submodel: EcoBoost

      Helpful (0)

    • 5/5

      Installation Time: Afternoon

      June 30, 2018

      Transforms!

      Moderate drop. I didn't want it in the weeds and these are just right. The ride is a little bit stiffer, but certainly not punishing. Good feedback/road feel. Handling is FAR better than stock! The stock suspension was "floaty". The SR springs make if feel FAR more sure-footed. Far more responsive, less body roll, pitch, and nose dive. All around better. VERY happy I got these! Best money I've spent on the car so far. Don't let the low price turn you off. These are just right for what I wanted.

      AnthonyF

      Year: 2017 Submodel: GT

      Helpful (0)

    • 5/5

      June 27, 2018

      Great

      Needs about a day or two to settle before really noticing. Handling is also very noticeable right out the box, and ride quality is about the same as stock.

      Christian

      Year: 2015 Submodel: EcoBoost

      Helpful (0)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $250-$500

      June 22, 2018

      I love them!

      Ok figured they would kill your ride . Not so much can’t really tell much a little stiffer in giant potholes but that’s to be expected . Also seem to handle a little better on those curvy roads wish I would have ordered whole spring,front and rear swaybar kit. Have to let settle. Then will have to be lined up front and rear.

      JamesC

      Year: 2016 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Full Day

      June 21, 2018

      SR Springs

      Good Springs for the price!! Overall please with the product. 1 day install

      RobertB

      Year: 2015 Submodel: GT

      Helpful (1)

    • 4/5

      Installation Time: Shop Install

      Installation Cost: $250-$500

      June 19, 2018

      Good mod for Price

      Looks better than the factory height, was hoping for a little bit more but for the V6 an inch is about all you get with just springs. 1.5 inches would make the car look a lot better. Only complaint is the springs on stock suspension is a little Bouncy over bumps compared to stock so it took away some of the smoothness of the ride, Stiffer spring so I guess that's to be expected. Otherwise good bang for the buck. shop install was a bit pricey so if you can do it yourself its recommended.

      RobertK

      Year: 2016 Submodel: V6

      Helpful (1)

    • 5/5

      Installation Time: Shop Install

      June 16, 2018

      Great Springs!!

      Great product, lowered the car just how I wanted it and kept the good ride!! Got the camber bolts to get the right alignment

      Lobo

      Year: 2018 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Afternoon

      June 12, 2018

      Nice Ride

      The springs was easy to install,the ride fells good the performance and look are great

      SayV

      Year: 2017 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Full Day

      June 09, 2018

      Just right look

      The springs came with no instructions and that made me look at the you tube info available. Pretty straight forward install after that. I took my time allowing for my age(69) and am pleased with the look, a slight rake. Seems a little stiffer and with a flatter cornering stance. Just what I was looking for

      MarcM

      Year: 2016 Submodel: GT

      Helpful (1)

    • 5/5

      June 07, 2018

      Great bang for the buck!

      I waited a couple of months before writing this review just to make sure it was accurate. These springs are absolutely phenomenal! They get rid of the factory wheel gap and give your mustang a sleeker look. It improved handling as well. In 6 months i've only scrapped once but with bumps and things of that nature you go over just fine. These are great springs and I would definitely recommend them.

      Jose

      Year: 2017 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Afternoon

      June 05, 2018

      Definitely recommend!!

      They are the best bang for your buck. Under $200 and it makes a big difference during a turn or a straight line.

      AlejandroN

      Year: 2015 Submodel: GT

      Helpful (1)

    • 4/5

      Installation Time: Afternoon

      June 04, 2018

      SR springs

      Worked well, Car looks great, ride is as expected. A little difficult to install the rears. Online video's suggest that it will be easy to push down on axel to remove old spring. I had to loosen all 4 IRS bolts, then remove two closest to the spring I was working on. Still needed a friend to push down while I removed the old spring. All in all not that difficult a job, just a little surprised it was more involved than led to believe. Springs are not marked top or bottom, shame on you American Muscle.

      DanS

      Year: 2015 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $100-$250

      May 31, 2018

      Excellent Performance!

      I loved how well it helped lower my car to remove the gap. My car rides and handles much better than before. I'd recommend SR Lowering Springs for all Mustangs.

      Don

      Year: 2018 Submodel: GT

      Helpful (1)

    • 4/5

      Installation Time: Weekend

      May 31, 2018

      Better than the price

      I have had other Mustangs and other springs. These are not the best, but they are not the worst either. They are very good for the money considering they are the cheapest ones available, but not as good as the comparable Eibachs. About half as bouncy as stock springs on whooops in the road. They do not completely eliminate nose dive or rise, but come very close. NOTE: When installing in an S550, the sway bar end links are VERY DIFFICULT to tighten all the way. VERY DIFFICULT. I had to drive it to Ford for alignment with them rattling loudly. Ford tightened them for me gratis. My star ratings are realistic rather than excitement-based. Good springs. Buy them. I will post pics this weekend (2-3 June).

      DavidP

      Year: 2016 Submodel: GT

      Helpful (2)

    • 4/5

      Installation Time: Shop Install

      Installation Cost: $250-$500

      May 30, 2018

      Sr on 2018 ecoboost

      Just had these installed on my base model 2018 ecoboost mustang. So far I like the firmer but not super hard ride. Very little brake nose dive. And how planted the car now feels when cornering. Time will tell in daily driving how they hold up. As I'm on stock shocksandstruts, with bmr vertical link, irs lockout bracesandupper stb.

      Ben

      Year: 2018 Submodel: EcoBoost

      Helpful (2)

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