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SR Performance Lowering Springs (15-17 GT, EcoBoost, V6)

Market Price $229.99 You Save 22% ($50.00)
Our Price

$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
  • Fits 2015-2017 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 2015-2017 Mustangs equipped with independent rear suspension (IRS), including the V6, EcoBoost and GT models.

Fitment: 2015 2016 2017 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?
  • V6 - 15, 16, 17
  • GT - 15, 16, 17
  • EcoBoost - 15, 16, 17

People Who Bought This Item Also Bought

Most Helpful Reviews

5/5
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 ...

Read More
Helpful (4)

5/5
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 ...

Read More
Helpful (2)

Overall Rating 4.8 out of 5 stars
Read All 88 Reviews

Customer Photos (66) Submit Your Photo

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34 Questions / 6 Answers

Ask a Question

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 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 (1)

What is the spring rate of these springs?

GDPONE

  • Hello! The Spring Rate for the front of the SR Performance Lowering Springs is 185-275 lb/in. The rear spring rate is 800-880 lb/in.

    VincentV

Helpful (1)

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?

FlaviusP

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

    pserafi

Helpful (1)

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?

FlaviusP

  • It would be difficult to say if the installation of the SR Performance Lowering Springs and a one inch spacer would cause rubbing without additional information such as the offset of the wheels. The best way to see if there is sufficient space would be the measure the drop in height from where your wheels sit now, and also measure an inch from the wheel outward. If you perhaps would be able reach out to us via phone or email with further details, we would be more than happy to take a further look into the issue at hand.

    AMJEFF

Helpful (1)

Do you need a alienment

v10stang

  • We highly recommend getting an alignment any time you change the suspension on your car. This will ensure there is no unnecessary wear on your tires or other suspension components.

    AshleyK

Helpful (1)

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Customer Reviews (88) Write a Review

Overall Rating 4.8

out of 5 stars

Installation Time:Full Day

Installation Cost:$250-$500

  • Handling Improvement 4.54321 4.5
  • Ride Quality 4.62963 4.6
  • Appearance 4.839506 4.8
  • Bang For Your Buck 4.814815 4.8



  • 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 (4)

  • 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 (2)

  • 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 (2)

  • 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 (2)

  • 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 (2)

  • 1/5

    September 18, 2017

    NOT HAPPY

    I bought these for my husband thinking I was getting him a great gift. Once installed they started making this horrible noise. The slightest bump in the road or turn you just hear what sounds to be gears grinding.

    Bat

    Year: 2015 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    June 01, 2017

    Awsome

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

    JosueS

    Year: 2016 Submodel: EcoBoost

    Helpful (1)

  • 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 (1)

  • 4/5

    November 24, 2016

    Very nice look

    And real positive change in the overall look and handling of my S550 GT

    Rusty

    Year: 2016 Submodel: GT

    Helpful (1)

  • 4/5

    September 03, 2016

    You get more than what you pay for

    I have had these springs on the car now for 1 week and I love the stiffer feel of the car,handling has improved and the brake dive has gone. The car is settling to a nice ride hight. I am very pleased with my purchase. The only thing (and that's with most spring for EB) is that I wish the front was just 1/2 " lower but all in all GREAT BUY.

    Cmoney

    Year: 2015 Submodel: Ecoboost

    Helpful (1)

  • 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 (1)

  • 5/5

    August 04, 2016

    2016 gt sr lowering springs

    pretty easy install with the right tools. Just be sure you don't put front springs in upside down.

    Dave

    Year: 2016 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $100-$250

    June 28, 2016

    A Spring set

    Really great for the price, lowered just enough to notice but not affect the ride feel. Definetly a good buy for someone starting out modding.

    CAIRs550

    Year: 2016 Submodel: Ecoboost

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    June 10, 2016

    Sr spring

    Great spring not to low not to high Just as much as I need

    Punkb

    Year: 2016 Submodel: GT

    Helpful (1)

  • 4/5

    Installation Time: Afternoon

    May 02, 2016

    Get low

    These SR springs give you a good height adjustment compared to stock. Not only that but it gives the car a more of a balance feeling while driving.

    Gizmo

    Year: 2015 Submodel: Ecoboost

    Helpful (1)

  • 4/5

    Installation Time: Afternoon

    January 01, 2016

    Great Springs!

    Put these springs in the other day, I was amazed by how much the brake dive and acceleration squat are almost gone. The handling is a little stiffer and rides well on the roads. Great overall for the price, would recommended!

    CS550

    Year: 2015 Submodel: V6 Lewisville, Nc

    Helpful (1)

  • 5/5

    Installation Time: Full Day

    November 19, 2015

    Bang for the buck

    Great catch for the money. No complaints but does make car ride stiffer.

    Mustangboy79

    Submodel: V6 Orlando

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    September 24, 2015

    Bang for your buck

    Went with these because i was on a budget comparing to the other springs. I was satified with the results. Definitely worthy the purchase.

    wilder94

    Year: 2015 Submodel: Ecoboost Nj paterson

    Helpful (1)

  • 5/5

    Installation Time: Less than 1 Hour

    September 20, 2015

    AWESOME FOR THE PRICE!

    I got this a while ago but did not have a chance to install it. I got this installed yesterday with the help of my friend. We did it under 1 hour for all four springs. The new IRS is much easier than those on the older mustangs.

    JungleG1337

    Year: 2015 Submodel: Ecoboost Gaithersburg, MD

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    September 19, 2015

    wish i tried these springs first.

    Nice appearance compared to more expensive springs im glad i bought these...

    Firstv8

    Year: 2015 Submodel: GT Ca

    Helpful (1)

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