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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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    44 Questions / 6 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 4.539216 4.5
    • Ride Quality 4.578432 4.6
    • Appearance 4.843137 4.8
    • Bang For Your Buck 4.754902 4.8



    • 5/5

      Installation Time: Shop Install

      Installation Cost: $250-$500

      May 21, 2018

      SR lowering Springs 2015 Mustang gt

      My 2015 gt is a performance pack, so springs are firmer than a standard gt. There isn't a big difference in ride quality, but the car is an inch lower all around, My gt has twin 55mm turbos and rear of car stays flatter under power..less backlash which is a plus. Very pleased with look, ride and improved handling.

      MacP

      Year: 2015 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Afternoon

      May 14, 2018

      Perfect ride height

      These springs dont slam the car, just gets rid of the wheel gap the way it should have came stock. Though if you're over 6' tall there is a difference in the exit lol

      Xtian

      Year: 2016 Submodel: EcoBoost

      Helpful (1)

    • 5/5

      Installation Time: Full Day

      May 14, 2018

      Amazing value, perfect drop

      The quality of these springs is top notch. I considered more expensive options and a greater drop, but these turned out to be perfect. It eliminated wheel gap without putting the car so low that it scrapes everything. Installation was not quite as easy as I had hoped, but that had nothing to do with the springs themselves. The strut mount bolts had to be pressed out with a ball joint press (15 minutes with a sledge and they didn't budge, the press had them out within a few seconds). Also, I had to have a friend who is 250lbs jump on the back end so I could get the rear springs out. It wasn't easy, but the new ones slid right into place. Also, I rented one of the spring compressor units that you can put the entire strut into the unit to compress the spring. It was a massive pain and ultimately I went back and rented the basic spring compressor that has two separate pieces that goes on each side of the spring. Lesson learned: the fancier new tools don't always work better than the latest innovation. Don't hesitate to buy these springs. I'm 100 satisfied and would buy these again in a heartbeat. Also, thanks to American Muscle for their incredibly fast shipping.

      Andrew

      Year: 2017 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Less than 1 Hour

      May 14, 2018

      Amazing!

      My car looks amaaaziiiing! The lowering springs did really make a difference,

      AmericaG

      Year: 2017 Submodel: GT

      Helpful (2)

    • 5/5

      May 14, 2018

      Darrell Cross

      I give the product 5 stars it took 4 hours for the shocks it made the car look mean the x pipe made it sound like good music to my ears and as long as I have that Mustang GT I'm going to always buy my parts from American Muscle thank you guys may God bless you

      DarrellC

      Year: 2017 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Full Day

      April 21, 2018

      Great look, awesome ride!

      Awesome product, perfect drop while maintaining daily driver comfort Easy install as long make sure you have a good spring compressor, that’s where my difficulties where. Back way easier than the front, just have a helping hand to pull down the rear suspension when removing the spring and it is a piece of cake. Took me a total of about 5 hours, mostly due to the spring compressor!

      DerekM

      Year: 2016 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $100-$250

      March 27, 2018

      Love the ride and the look!

      I wasn't sure what it would look like since I was leaving the stock rims and tires on my Ecoboost for this drop. However, I am really happy with how the car looks and rides.

      sndybch

      Year: 2016 Submodel: EcoBoost

      Helpful (1)

    • 1/5

      Installation Time: Shop Install

      Installation Cost: $100-$250

      March 23, 2018

      Not as advertised...........

      After having a shop install these springs I was disappointed that the drop was not as advertised. After settling in, the front was lower 3/4" which I could live with. However, the rear still measured exactly the same as before the install. That's correct......no drop whatsoever. Now I have a car with a raked stance which I did not want. These springs are also very noisy up front when turning the wheel or going over any bumps. I've very disappointed overall.

      HeathE

      Year: 2017 Submodel: GT

      Helpful (3)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $250-$500

      March 23, 2018

      Wheel gap gone

      Love the look of the car. Not slammed down, looks almost stock. The only notable difference is the wheel gap is gone.

      LanceT

      Year: 2015 Submodel: GT

      Helpful (2)

    • 5/5

      March 22, 2018

      Looks awesome!!

      I recommend it for 20” wheels! Excellent ride and look

      RobertR

      Year: 2017 Submodel: V6

      Helpful (1)

    • 5/5

      Installation Time: Afternoon

      March 14, 2018

      Great quality an price

      Made a big difference to the ride all together an a more sexy stance

      AlbertP

      Year: 2017 Submodel: EcoBoost

      Helpful (2)

    • 5/5

      Installation Time: Afternoon

      March 12, 2018

      Sr springs

      They are great no rubbing and still have a daily driver feel 5 stars

      DvonE

      Year: 2015 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Afternoon

      January 30, 2018

      Amazing ride

      I was truly torn between this spring and the Eibach lowering spring. My wife got me the SR Performance springs for Christmas and they are not a disappointment as I still have an amazing ride.

      AnthonyL

      Year: 2017 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $250-$500

      January 29, 2018

      Good for the price

      when you get new springs you can not expect the entire inch to go down instantly, you will have to wait about 500 miles for it to set and then you will see the real results. those springs were the best for my car and lowered it the most. satisfied customer!

      RomyCheryZ

      Year: 2015 Submodel: V6

      Helpful (3)

    • 5/5

      Installation Time: Afternoon

      January 18, 2018

      Perfect and economic item

      Great and different experience when you drive with this new spring, I recommend to all my friends

      Sergio

      Year: 2016 Submodel: GT

      Helpful (2)

    • 5/5

      December 31, 2017

      Stiff

      My car is so much stiffer like it’s crazy because you can actually feel the difference I highly recommend this item

      ChanceT

      Year: 2015 Submodel: V6

      Helpful (2)

    • 5/5

      Installation Time: Afternoon

      December 11, 2017

      Looks great!

      Love the SR performance springs! Took about a half day to install. If you know someone with a lift it really helps! Looks great, it rides a little bit stiffer but that's to be expected! For the price you can't beat it! A definite 5 out of 5!

      JoshuaS

      Year: 2016 Submodel: EcoBoost

      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 (3)

    • 4/5

      Installation Time: Shop Install

      Installation Cost: $500-$1000

      November 08, 2017

      Very good price, but hesitant on stock suspension

      Very excited to lower my car;however, I am very hesitant on installing them on the factory shocks and struts. I've heard that lowering it only an inch won't hurt it, but I have also heard that it might bottom out or wear prematurely. To conclude, these springs will make your car look GOOD, but not satisfy your needs if you like it really low, aka no wheel gap. Great price, a lot of money for labor. 8/10

      DarrellF

      Year: 2017 Submodel: V6

      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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