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SR Performance Lowering Springs (15-19 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

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    Features, Video & Details

    • Lowering Springs
    • 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 2015-2019 GT, V6 and EcoBoost Mustang Models

    Review & Installation Video

    Review & Install 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.

    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-inch eliminating that huge tire to fender gap, for a more aggressive street stance.

    Progressive Design. Progressive springs (also known as variable rate springs) are designed to be more compliant when riding over rough and uneven surfaces like public roads. Progressive springs are engineered with a low starting spring rate that increases as the spring compresses. Variable rate compression allows for a smoother ride, while still providing good handling characteristics when pushed hard. This makes progressive rate springs a popular choice for daily street driven Mustangs.

    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.

    Professional Installation Recommended. Seeing that a spring compressor is required for installation of these Coil Springs, AmericanMuscle recommends professional installation. With the proper tools, installation can be completed in about three hours. Please note that an alignment is highly recommended after installation.

    Application. This set of four SR Performance Lowering Springs are specifically designed for use on 2015-2019 coupe and convertible Mustangs equipped with independent rear suspension (IRS), including the V6, EcoBoost and GT models. Does not fit Shelby GT350 models.

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

    Fitment: 2015 2016 2017 2018 2019 Details

    MPN# 387284

    CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

    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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    Questions & Answers (53)

    5 Top Rated Questions

    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?

    • 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.

    Helpful (15)

    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?

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

    Helpful (6)

    So I have 20inch rims ,my tires are 255/35/20 and 285/30/20. If I combined these springs with 1 inch spacers, will it rub?

    • You should be able to install the SR Performance Lowering Springs with those size tires without any rubbing issues.

    Helpful (3)

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

    • 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

    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?

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

    Helpful (1)
    Post Your Question
    10 More Questions
    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. 1 answer
    For GT PP cars, how does ride/handling compare to the current springs on the car? Will these be stiffer or about the same? 1 answer
    I have 20x10 (niche surge) wheels on 305/30/20 tires, will it rub? 1 answer
    What is the spring rate of these springs? 1 answer
    I have 20x10.5 rims and 285 tires in the rear with 20x9 and 255 in the front. If I combined these springs with the 1 inch spacers, will I rub? 1 answer
    Do you need a alienment 1 answer
    Important question, can I fit 275-60-15? It’ll rub or it’ll be fine thank you 0 answer
    I have stock wheels with 25mm spacers on the rear,and I'm thinking later on getting staggered 20x10 rear and 20x9 front wheels keeping the 25mm spacers on the rear..later add spacer in the front to. Would these 1inch springs make my wheels rub on the fender once I put on new set off wheels? 1 answer
    Looking at getting these, but I hear lowering springs damage and shorten the life of stock shocks,is this true? 1 answer
    Will these affect me negatively with me having headers? 1 answer

    Recommended For You

    Customer Reviews (100+) Write a Review

    Overall Rating 4.7

    out of 5 stars

    Installation Time:Full Day

    Installation Cost:$250-$500

    • Handling Improvement 4.503497 4.5
    • Ride Quality 4.566433 4.6
    • Appearance 4.811189 4.8
    • Bang For Your Buck 4.75 4.8



    • 5/5

      Installation Time: Afternoon

      February 06, 2019

      Excellent

      Good springs i love the stance of my car now, and it rides good with my 19” sve wheels

      EdwinV

      Year: 2015 Submodel: V6

      Helpful (0)

    • 4/5

      Installation Time: Afternoon

      February 01, 2019

      Not Flush But Worth It!

      Springs came packaged really well and in a nice box. Install was a little frustrating but mostly cause I didn't know how to use the spring compressor I rented from AutoZone. Front springs took the longest about 3 hours the back went by really quickly and only took about an hour for both. Video really helps that's posted for these springs!

      MichaelG

      Year: 2018 Submodel: EcoBoost

      Helpful (0)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $100-$250

      January 14, 2019

      SR Performance Springs

      Installed and the look is perfect. Rode quality is way better than stock. No rubbing or anything

      DonB

      Year: 2018 Submodel: EcoBoost

      Helpful (1)

    • 5/5

      Installation Time: Weekend

      January 14, 2019

      Great Deal

      Major improvement, the rears were very easy to install, the fronts another story, with the basic compression tool from Auto Zone it was still an epic battle, but worth the results, I have a tower strut brace from AM plus the springs, my Pony handles exceptional

      PeterK

      Year: 2018 Submodel: EcoBoost

      Helpful (1)

    • 5/5

      Installation Time: Afternoon

      January 10, 2019

      Perfect Drop

      Was looking for a very minimal drop without compromise of handling. I am glad I went with the SR for my 2016 EBM. The drop was about 1" all around, exactly what I was looking for. Ride quality is just slightly stiffer than oem but I am ok with that and it was expected. Due to this being my spouse's daily driver, I didn't want to be too low where she would have parking issues to and from work. And since we upgraded to 19x10/11 Project 6GR GT350 Wheels, I wanted them to look just right as the 20s are too big for this body style. Overall extremely happy with my purchase. And the look and feel of these 285 and 325 tires on the 19s with this drop is PERFECT!

      Ecobeast

      Year: 2016 Submodel: EcoBoost

      Helpful (1)

    • 5/5

      Installation Time: Shop Install

      January 03, 2019

      Do it!

      I'm very happy with these springs. I was sceptical that it would be too low but it looks awesome. I don't notice a ride difference either.

      JeffW

      Year: 2018 Submodel: GT

      Helpful (1)

    • 3/5

      Installation Time: Full Day

      December 12, 2018

      Handling

      It handles way better than stock springs, I hear some noises coming from the rear right spring, not sure if they are the springs or I didn't tighten the subframe. They do not have up or down instruction. May change them in the near future.

      JulianoC

      Year: 2018 Submodel: EcoBoost

      Helpful (1)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $100-$250

      December 12, 2018

      SR Springs.

      Great product. The car feels weird at the beginning but after 2 o 3 days the car runs smoothly. Nice drop, exactly 1".

      JoseS

      Year: 2018 Submodel: EcoBoost

      Helpful (1)

    • 5/5

      Installation Time: Afternoon

      December 11, 2018

      Low!

      Springs dropped it low enough to notice a difference but not too low to make it look ridiculous. Very satisfied.

      EcoBeast

      Year: 2017 Submodel: EcoBoost

      Helpful (1)

    • 4/5

      Installation Time: Full Day

      December 11, 2018

      Good bang for your buck

      Looks good. UPS destroyed the box getting it to me so one of the springs were practically falling out so there were a bunch of rub marks on them. If you dont mind that I would recommend them to everyone.

      SinjinC

      Year: 2017 Submodel: EcoBoost

      Helpful (1)

    • 4/5

      November 22, 2018

      Good value

      Nice sorings and perfect drop. It would be jice to know top or bottom for us rookies.

      ScottC

      Year: 2016 Submodel: GT

      Helpful (1)

    • 4/5

      Installation Time: Shop Install

      Installation Cost: $100-$250

      November 15, 2018

      Great

      I have 20” staggered wheels and they do not rub at all, the springs make my car look and ride very nice

      DannyC

      Year: 2016 Submodel: GT

      Helpful (5)

    • 5/5

      Installation Time: Afternoon

      November 15, 2018

      SR springs

      Springs worked great. Lowered car 1 inch. Still settling so I think it may be 1 1/4 inch. Great price.

      JasonM

      Year: 2015 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Weekend

      November 09, 2018

      Great piece

      Great piece, these springs made my pony take a more aggressive style. Exactly 1 "in each corner, it looks great.

      JorgeL

      Year: 2016 Submodel: EcoBoost

      Helpful (2)

    • 5/5

      Installation Time: Afternoon

      November 05, 2018

      lowering springs

      essay install, took about 3 hrs. at first the springs didn't make a difference but not that they are settled in ithey eliminated my wheel gap.

      EduardoT

      Year: 2016 Submodel: EcoBoost

      Helpful (3)

    • 5/5

      Installation Time: Afternoon

      October 30, 2018

      Great product

      I was kind of iffy on if I should do lowering springs but these were great. It lowered my car exactly 1 inch in both front and rear. The ride is not bad. Ofcourse it is a little stiff but not bad. Would highly recommend.

      MichealA

      Year: 2017 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Full Day

      October 26, 2018

      great product

      looks good, and handles better than with the stock ones

      JoanM

      Year: 2016 Submodel: GT

      Helpful (1)

    • 4/5

      Installation Time: Full Day

      September 28, 2018

      SR Spings

      Ride is a bit tighter than the original springs but not bad. Lowered the car one inch at all four corners, looks great.

      GabrielG

      Year: 2015 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      September 26, 2018

      Lowering springs installation

      The product is of good quality, and it did its job, the car looks great.

      JoseE

      Year: 2016 Submodel: EcoBoost

      Helpful (1)

    • 5/5

      Installation Time: Afternoon

      September 16, 2018

      I love these springs!

      Just got these springs installed yesterday, and I absolutely love them. I will post pics. I'm very surprised that these are only a 1 inch drop. To me it looks much lower. I'm glad I got these, bc I couldn't imagine a drop lower than these. The car rides fine, just a tad rougher than stock... but this is to be expected though. Whether you are driving/riding/looking, you can definitely tell that its been lowered. It looks great, and helps with handling. I've put at least 100 miles on my car since I got them installed yesterday, and i'm loving them! See pics to see what you think.

      xxelusivexxx

      Year: 2017 Submodel: GT

      Helpful (8)

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