(approx) 4 Hours
Mechanical expertise or professional installation required.
$179.99 (kit)FREE Shipping
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.
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Features, Description, Reviews, Q&A, Specs & Installation
Fitment: 2015 2016 2017 2018 2019 2020 Details
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December 26, 2019
I run on 275/35/20 front and 295/35/20 rear. Dropped the car down by an inch and looks absolutely amazing. Ride is more softer and handles betterHelpful (0)
October 13, 2019
Perfect stance, much improved ride
I was just looking to improve the stance and handling of my ‘18 GT. These springs are perfect. Still clears steep driveways and speed bumps, while vastly improving the the look and handling. Paired these with 25 MM spacers and the handling dynamics have been transformed. Cannot recommend enough especially for the price.Helpful (0)
October 03, 2019
Exactly the inch drop I need to reduce wheel gap.Smooth ride like oemHelpful (1)
September 24, 2019
absolutely the best bang for your buck
purchased these lowering springs for my 2016 mustang and man the stance is amazing but definitely would recommend a shop do it unless you have the right spring compressors. took me about 6 hours to install at a midas since i work there i could use the lift which was extremely helpful all in all if you are considering a budget friendly lowering spring with good quality buy these springsHelpful (0)
August 22, 2019
1 inch drop. No more wheel gap. No difference in ride qualityHelpful (1)
August 10, 2019
These were perfect for eliminating some wheel gap but it didn’t lower enough to worry about scraping. I could be more satisfied!Helpful (1)
July 30, 2019
Pretty basic install. Car handles a lot better and the height sits just perfect for no scrapes or having to be worried about speed bumps and driveways. Ride is a little firmer then stock but still good for daily driver. My only complaint and the only reason I did not give 5stars is springs are not labelled for direction of install (wasted time figuring out which side was up).Helpful (0)
July 11, 2019
1 inch drop
1 inch drop all around, great ride quality and like the way it looksHelpful (0)
June 24, 2019
install didn't take too long, ride quality feels good.Helpful (0)
June 18, 2019
Ride height is Perfect also going over bumps is not a lot of bounce plus its smooth. Check my car out at "Jay F8st" on YouTube.Helpful (0)
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.
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.
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.
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
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!
Yes, that is an acceptable install method.
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.
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.
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.
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.
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.
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.
We do not have this information on hand, but can indeed lend the spring rate below: Front: 185-275 lb/in.Rear: 800-880 lb/in.
(approx) 4 Hours
Mechanical expertise or professional installation required.
What's in the Box
|Spring Rate:||Front: 185-275 lb/in. |
Rear: 800-880 lb/in.
|Progressive or Standard:||Progressive||Estimated Drop:|
1.0"F / 1.0" R