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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?
    • EcoBoost - 15, 16, 17, 18
    • GT - 15, 16, 17, 18
    • V6 - 15, 16, 17

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    Customer Photos (73) Submit Your Photo

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    39 Questions / 6 Answers

    Ask a Question

    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)

    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 (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)

    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)

    I have 20x10 (niche surge) wheels on 305/30/20 tires, will it rub?

    David

    • With the SR Performance Lowering Springs and 20x10 Niche Surge wheels with 305's in the rear, fitment will be tight, but should not rub.

      Rob D

    Helpful (1)

    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 (1)

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    Customer Reviews (97) Write a Review

    Overall Rating 4.7

    out of 5 stars

    Installation Time:Full Day

    Installation Cost:$250-$500

    • Handling Improvement 4.533333 4.5
    • Ride Quality 4.577778 4.6
    • Appearance 4.833333 4.8
    • Bang For Your Buck 4.733333 4.7



    • 5/5

      Installation Time: Afternoon

      July 28, 2017

      Good Value

      I got these because of the price and was pleasantly suprised at the outcome, the stance is perfect and the ride is not like a farm tractor but much like the factory, firm and not harsh at all. Keep in mind that this kit does NOT COME WITH THE BUMP STOPS. I would post a picture but not an option.

      DonAdamson

      Year: 2017 Submodel: GT

      Helpful (5)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $250-$500

      May 11, 2017

      The best mod so far!!

      Buy it,you will notice the deference as soon as the car star moving and it will ride better than the originals springs.I have a 2017 gt performan pack and i love them,also the ride is lowered 1inch but it feels like it is more.I put 25mm spacers on 4 tires and now the look and the ride is another thing

      AlexV

      Year: 2017 Submodel: GT

      Helpful (5)

    • 5/5

      Installation Time: Afternoon

      June 28, 2016

      Just The Right Height!

      Have 20" wheels so these springs were just right - decreased gap by about 1". Any lower and I think it would scrape at a lot of areas. Have a Roush front end with an APR splitter. Very happy with the product. Many people comment on ride handling, but I didn't buy it for that. The car rides great anyway (with or without new springs), but then again, not racing it on a track either. This was strictly an upgrade for looks. Had to have installed professionally and it took about 4 hours.

      RAJCO

      Year: 2016 Submodel: GT

      Helpful (5)

    • 5/5

      Installation Time: Afternoon

      June 27, 2017

      Better than expected.

      Got this really just for the drop but once I got on the highway and put her through some curves i was extremely surprised on how much this smoothed out my ride. highway is so smooth now and no more wobble after leaving a curve. watched my friend put this on and he said it went on super easy.

      HunterP

      Year: 2015 Submodel: V6

      Helpful (4)

    • 5/5

      Installation Time: Afternoon

      June 01, 2017

      Awsome

      Perfect height. Ride quality tons better than stock!!!

      JosueS

      Year: 2016 Submodel: EcoBoost

      Helpful (4)

    • 5/5

      August 08, 2016

      Great Springs!

      These springs are excellent!! Perfect ride height in my opinion!! The ride is firm but refined! I love these springs!!!

      Randall

      Year: 2015 Submodel: Ecoboost

      Helpful (4)

    • 5/5

      Installation Time: Afternoon

      May 30, 2016

      SR performance Springs!

      These Springs are a must ! If your concerned about ride quality like I was , you can put those fears aside . SR performance Springs gave me that stance I was looking for , a great ride and better handling ! I love the new look and I'd recommend them to anyone looking for a quality suspension upgrade that won't bust your wallet !

      Stangman77

      Year: 2016 Submodel: GT

      Helpful (4)

    • 4/5

      October 08, 2017

      SR 1ish Inch Lowering Springs

      Decent overall springs. Ride quality will change of course, it does become slightly more "bumpy". Look is great almost perfect in my opinion. As far as handling it does seem to improve it some but due to the fact you have to cut the bump-stops it can get a little squirrely in higher speed cornering. With that said I WOULD suggest these.

      MitchN

      Year: 2015 Submodel: GT

      Helpful (3)

    • 5/5

      Installation Time: Less than 1 Hour

      September 21, 2017

      Easy to install. Quality product

      I’m an ASE certified master tech, so the install came easy to me. I was skeptical about how good of a product these would be for the price, but I’m happy to report I was pleasantly surprised. Ride is as close to stock as it gets, and it sits very nice

      StephanD

      Year: 2017 Submodel: GT

      Helpful (3)

    • 5/5

      Installation Time: Afternoon

      August 02, 2017

      10/10 will recommend.

      I've had SR Springs on several of my Mustangs and I've never been disappointed. Where slightly more difficult to install than on previous model mustangs but overall it took me a little over 3 hours with basic tools to do. And lowered the car perfectly and handles better than stock for sure. Highly recommend.

      MikeL

      Year: 2016 Submodel: GT

      Helpful (3)

    • 5/5

      Installation Time: Afternoon

      July 23, 2017

      These springs are great

      We have 2 s550's one has these and the other has the steeda sport springs. I like these better.

      MichaelZ

      Year: 2016 Submodel: GT

      Helpful (3)

    • 5/5

      July 07, 2017

      No stepchild

      I have been into cars for many years, I have had a 1965 289 K code mustang, a 1968 Plymouth gtx with a 440 magnum v8, a 1965 yenko stinger, a 1967 gto v8, just to name a few and let me tell you my 3.7 v6 2015 mustang is as fast or faster than them all, muscle cars or not. I am a bit surprise that the latest v6 doesn't get more attention. My car is a 2015 v6, with the optional 18 inch wheels, 3.55 rear end with positraction and I love the car, it is fast pretty, handles well and gets good gas mileage on 87 octane. I am so glad that American Muscle has speed and upgrade parts not just for the 5.0 and new eco boost, but also for my v6 stang, thanks American Muscle. I also love your videos keep up the good work

      GregoryE

      Year: 2015 Submodel: V6

      Helpful (3)

    • 5/5

      Installation Time: Afternoon

      June 23, 2017

      better look

      Hands down best product for the money. Handles much better.

      mustanggt

      Year: 2015 Submodel: GT

      Helpful (3)

    • 4/5

      Installation Time: Shop Install

      Installation Cost: $250-$500

      May 29, 2017

      Awesome Springs

      The 1 inch drop makes a huge difference in appearance and performance. You definitely get more than you pay for with these springs. The video made the install look like a breeze but I'm glad I took it to my shop because it was more complicated than it looked.

      LuisW

      Year: 2017 Submodel: EcoBoost

      Helpful (3)

    • 5/5

      Installation Time: Afternoon

      March 09, 2017

      Just right

      Great set of springs, slightly stiffer than stock great handling, eliminated all wheel gap. Great price as well.

      Malcom

      Year: 2015 Submodel: GT

      Helpful (3)

    • 5/5

      Installation Time: Less than 1 Hour

      February 06, 2017

      SR Performance springs

      Awesome look and handling. Great price! Very easy to install. Improved the look by a lot. When added with other mods makes your mustang look mean. Agressive and beautiful stance.

      JamesL

      Year: 2015 Submodel: GT

      Helpful (3)

    • 5/5

      Installation Time: Afternoon

      October 18, 2016

      GOOD

      THIS IS VERY GOOD FOR LOWERING.BUT INSTALL IS DIFFICULT.

      joe

      Year: 2015 Submodel: Ecoboost

      Helpful (3)

    • 5/5

      Installation Time: Afternoon

      September 18, 2015

      Great product! Awesome price

      This is a great product from American Muscle. I was worried about the quality of these springs because well lets face it we've all heard the saying you get what you pay for. Well i dont think thats the case with these springs, I think I got much more than what i paid for. Love these springs they are exactly what i was looking for and I'm glad i got them instead of the high priced springs.

      Rich

      Year: 2015 Submodel: Ecoboost Phoenix az

      Helpful (3)

    • 2/5

      Installation Time: Afternoon

      November 19, 2017

      Not thrilled

      Ordered these for my 17 mustang gt and paired them with the koni shocks and struts and ford performance strut mounts after install noticed a clunk from the front of the car and noticed the coils are touching would not buy or recommend these springs

      JesseB

      Year: 2017 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Afternoon

      October 31, 2017

      Great buy!

      Easy, sporty, clean look! Self install was a breeze with a rented spring compressor. Very nice bang for a buc! Best of all the rear doesn’t look lower than the front.

      RickD

      Year: 2016 Submodel: GT

      Helpful (2)

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