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Eibach Sportline Lowering Springs (15-20 GT w/o MagneRide)

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    Features, Videos & Details

    • Extreme Lowering & Aggressive Stance
    • Race Car Like Handling
    • Lower Center of Gravity
    • Progressive Spring Rate
    • Coupe Drop: Front - 1.5” Rear - 1.3”
    • Convertible Drop: Front - 1.6” Rear - 1.4”
    • Clears Stock and Aftermarket Wheels & Tires
    • Not Compatible on 2020 Performance Pack or MagneRide Equipped Vehicles
    • Fits 2015-2020 GT Mustangs

    Review & Installation Video

    Hey, guys. Stephanie with AmericanMuscle.com here with the Eibach Sportline Lowering Springs for 2015 and up S550 GT Mustangs. The Eibach Sportline Lowering Springs are going to be a good option for the S550 GT owners out there who are looking for a spring that will give an aggressive drop and more aggressive handling. The spring is perfect for those S550 GT owners out there that are willing to sacrifice some of the nicer amenities of a softer ride quality in order to gain one of the biggest drops for the S550 from a lowering spring. Lowering springs have a big impact on the S550s. They can completely change the looks of the car without having to change a lot, and the Sportlines offer one of the largest drops for these cars. The Sportline springs are going to drop the GT about one and a half inches in the front and 1.3 inches in the rear. And like I said, it doesn't get much lower than this for the S550 from a spring, and this is an aggressive drop. The drop will change slightly depending on if the car is a coupe or convertible due to the weight differences between the models. But depending on your wheel and tire setup this drop is going to eliminate nearly all of the wheel gap that the GT has from the factory, and it's going to leave the car nearly tucking tire but sitting just above depending on what size wheels you have. Now a one-inch drop is pretty standard across the board for the S550 and I would say that one inch lower is pretty significant for these cars, and I mean significant in both looks and performance changes. So that means the one and a half inch drop that the Sportlines offer is the max drop from a spring that you're going to be able to find. This drop will lower the car's center of gravity enough to create more track like handling capabilities. These springs are really going to reduce squat during acceleration and reduce wheel hop as well. You're also looking at much less body roll during cornering and less nose dive during braking. Lowering the center of gravity this much on the S550 means that these springs are really going to change and tighten up the handling of these cars. Now, if you think one and a half inches is too much of a drop or you really wanna hang on to some of those softer ride quality characteristics, Eibach also makes a pro kit lowering spring. They drop the car about one inch all the way around and they will ride differently than the Sportline kit a little bit more comfortably. To really lay this out, I would say that the Sportline springs are more aggressive and better suited for some track use, or for those that are really looking for high performance and forceful looks. They're an all the way around more aggressive spring. The pro kit springs on the other hand are a great option for those that would like to lower the car and reduce wheel gap but that wanna keep a ride quality and street ability in the forefront of their mind as well. This doesn't mean that the Sportline kit won't work on a daily driven car. It'll work just fine. It really all comes down to your personal preference and what you want out of the springs. The Sportline springs, like the pro kit springs, are still a progressive spring. Progressive springs concentrate on providing balance at all times in order to improve handling. I will say though that since the drop here is more aggressive than most other springs, and keeping the spring rate in mind, that these springs are not the most ideal for drag racing. There are some better options available on the site for you guys that wanna hit the drag strip. Those other options will allow for more weight transfer and give you better results on the drag strip. Now, these springs do provide an aggressive drop but they are still going to work with both the factory wheels and the pre-configured wheel and tire kits that are on the site. These springs aren't going to make the car difficult to drive places but you will need to be a little bit more careful. They're going to be stiffer than the factory springs as well, so you will notice some more road noise and bumps. But I won't say that these give a bad ride quality at all. They're just not as soft as factory. I do wanna say that a lot of times when you're shopping for lowering springs, you're also shopping for things like adjustable caster camber plates and a new set of both shocks and struts. In this case, I wouldn't say that caster camber plates are necessarily required, but I will say that the one and a half inch drop is about the limit of where you would need a set of adjustable caster camber plates in order to get the alignment within spec. It's going to be close, so a set of caster camber plates wouldn't be a bad idea at all. At the end of the day, it never hurts to have caster camber plates. So if you've got the extra cash, I'd say go ahead. But in all reality, you will be able to get away without picking up a set. As far as shocks and struts, this goes back to the drop, too. I would say that you can get away with the factory shocks and struts in this case due to the relatively minor drop in the grand scheme of lowering cars, the more forgiving progressive spring rate, and also the low mileage of the components. If your shocks and struts have a ton of miles on them, I would replace them, but in this case since we're talking about relatively new cars here, I don't think it's necessary. When it comes to price, these springs are going to be in the middle of the road as far as options go. They're not the most expensive, but they're not the least expensive either. They cost just under $250, which is the same price as the pro kit springs. If you're just looking to get your car lowered or you're concerned with ride quality, there are some other options on the site that cost a little less and will get you where you wanna be. On the other hand, if you are concerned with keeping a nicer ride quality and getting as low as possible, you're shopping in the right place. So the install here is going to take about four hours and I'm going to call it a two out of three wrenches on the scale. You will need some knowledge to complete this install, so I'd recommend having a knowledgeable helping hand or taking this to a shop for the install, especially since it's always a good idea to get an alignment after the install anyway. This install can be done on jack stands if you don't have access to a lift, but as usual a lift would be your best bet here. Going to need to a few tools, including a spring compressor, so make sure you have that before you start the install. You are going to need to get down to the spring and strut assembly, so everything like the wheels, brakes, ABS lines, will need to be moved out of the way so you can pull the assemblies out of the car. The spring compressor will help you remove the spring from the strut and install the new front springs, which are compressed and installed the same way. The strut assemblies go back the same way they came out and the install is the same for both sides. The rear is where things are a little bit different but nothing crazy here. Essentially the IRS subframe will be dropped along with the rear shock mount so you can slide the rear springs out. Just like the front, the rear springs install the same way they're uninstalled, and no surprises here. The new bump stops slide onto the shock, followed by the factory dust boot. The new springs can be installed and the IRS subframe can be bolted back up, and that's about all it's going to take. Like I mentioned earlier, a fresh alignment after the install isn't a bad idea. Wrapping things up here, the Eibach Sportline Lowering Springs offer a spring with an aggressive drop and improvements in handling to make for a car that feels track ready. They will drop the car about one and a half inches all the way around and will leave the car sitting just above the wheels and tires. The springs are not difficult to install, they're in the middle of the pack as far as pricing goes, and you can check them out more online right here at AmericanMuscle.com.

    Better Handling. Give your 2015-2020 S550 GT the sports car type handling it deserves with an Eibach Sportline Spring Kit. This lowering spring kit lowers your Mustang's ride and center of gravity even more than the legendary Eibach Pro-Kit, for maximum improvement in acceleration, cornering, and braking performance. A set of Eibach Sportline springs are the no-compromise choice for the enthusiast that still needs a streetable car.

    Maximum Lowering. Eibach's Sportline Spring Kits are designed to deliver the lowest possible drop for a race car like look and handling, while still maintaining exceptional ride quality.

    Progressive Design. Eibach uses their proprietary progressive spring design to create the Sportline springs. The result is a spring that delivers the maximum lowering and aggressive stance a true enthusiast demands, without compromising safety or ride quality.

    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. These Eibach Sportline Lowering Springs are designed to fit both coupe and convertible 2015-2020 GT Mustangs. Sold as a set of four.

    Technical Note. The Springs are

    not compatible on vehicles equipped with the MagneRide Suspension.

    Estimated Coupe Drop: Front - 1.5” Rear - 1.3”

    Estimated Convertible Drop: Front - 1.6” Rear - 1.4”

    Fitment: 2015 2016 2017 2018 2019 2020 Details

    MPN# 4.14535

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

    What's in the Box
    • (2) Front Lowering Springs
    • (2) Rear Lowering Springs
    Installation Info
    Tech Specs
    Springs Specifications
    Spring Rate: Front: 217-331 lb/in.
    Rear: 879-994 lb/in.
    Usage: Street/Track
    Year: 2015-2017 GT Model: Coupe
    Convertible
    Progressive or Standard: Progressive Estimated Drop:

    1.5"F / 1.3" R
    1.6" F / 1.4" R

    Will it fit my Mustang?

      Customer Photos (100+) Submit Your Photo

      View All 100+ Photos

        Questions & Answers (109)

        5 Top Rated Questions

        Do the front tires rub while turning

        • The Eibach Sportline Lowering Spring Kit will not cause any rubbing with the tires as long as the tire isn't over a 285 in width.

        Helpful (10)

        I looked on EIBACH'S website and put in my model of car a 2017 s550 V6 coupe and these came up. Is that just something they have and you guys only have ones for the V8 or do these fit both. Im just really confused and i really want that 1.5 drop in the front.

        • The Eibach Sportline Lowering Spring Kit will physically fit the V6, however lowering amounts will be less, due to the lower weight of the V6 model, especially in the front.

        Helpful (9)

        What struts and shocks would you recommend pairing with these springs. Id rather do it all at once.

        • The Koni Sport Adjustable Front Struts, item # 390803, https://www.americanmuscle.com/koni-sport-adj-strut-1516.html, and Koni Sport Adjustable Rear Shocks, item # 390804, https://www.americanmuscle.com/koni-sport-adj-shock-1516.htmlwould be a great match for the Eibach Sportline Lowering Spring Kit. You can adjust the rebound dampening on the Koni's depending on the type of driving you are doing, from maximum comfort to maximum handling.

        Helpful (4)

        In the video on these springs are there spacers on the wheels? From the angles in the video it looks like the wheels sit very nice and almost flush with the fender. Would it be a bad idea to pair these springs with a spacer? I know someone asked about 1" already, but maybe something smaller? Would there be any rubbing or turning issues for stock GT/CS wheels? (Especially considering I live in NY- pothole central).

        • The Eibach Sportline Lowering Spring Kit which we have installed in our video will not have spacers on the wheels. These wheels will be a staggered aftermarket wheel which allow for the wheels to sit flush. Adding spacers to the rear wheels will absolutely provide this look to your stock wheels.

        Helpful (4)

        I have 295/40/20s on my rears will this cause any rubbing or should I go with a less aggressive lowering option?

        • You would be able to run the 295 tires in the rear with this kit but you may experience some rubbing when going over bumps. We would recommend a kit that would have a 1" drop in the rear or running lower profile tires with this lowering kit.

        Helpful (3)
        Post Your Question
        10 More Questions
        I want to use the Eibach Sportline lowering springs on my mustang, my wheel setup will be 285/35 19x10 in front and 305/35 19x11 in rear. I was wondering if such a big drop will cause it to rub? If so, what other spring could I use to have a 'flush' set up. 1 answer
        On a 2015 gt pp , how much drop can I expect, I think pp is little lower than a gt , thanks for replying 1 answer
        I noticed that some people put these on their v6/ecoboost in the pictures. Will these work on my ecoboost? 1 answer
        I was wondering if eibach updated the coil springs to fit the 2019 Mustang gt with the performance pack 1 answer
        What size rims do i need to fit 305 tires in the rear with these springs ? 1 answer
        can these fit 305 sized tires on the pp1 rims for a 16 mustang gt ? 1 answer
        I am having mustang 2015 v6 , my wheel size is 235/35/20 will this fit mine? And will it be rubbing ? And will there be any issue ? And how kuch will it cost to fix it? 1 answer
        How much do all four springs weigh? 0 answer
        Is there anything else needed to purchase with this much of a drop. I am having troubles with getting my 16 GT aligned properly after the install. 1 answer
        Will this spring cause rubbing with nittos drag radials 305/3519r in the back 1 answer

          Customer Reviews (100+) Write a Review

          Overall Rating 4.9

          out of 5 stars

          Installation Time:Full Day

          Installation Cost:$100-$250

          • Handling Improvement 4.656915 4.7
          • Ride Quality 4.536 4.5
          • Appearance 4.949468 4.9
          • Bang For Your Buck 4.845745 4.8



          • 5/5

            Installation Time: Afternoon

            September 21, 2019

            Eibach is the way to go

            Night and day difference in looks and performance over factory springs!!

            Venom

            Year: 2019 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Full Day

            September 09, 2019

            Springs

            Like the ride. Not to difficult to install. This is the second s550 I have installed these springs on that I own. Would highly recommend these springs.

            Weeble

            Year: 2018 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Afternoon

            September 08, 2019

            Awesome

            Awesome fit awesome stance highly recommend for the 2019 gt

            Michael

            Year: 2019 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Afternoon

            September 06, 2019

            Great drop and even better ride

            The spring install was not bad at all. When I took it out on a test drive I couldn't believe how great everything felt. I feel like it rides better than factory now.

            Jkinsey

            Year: 2016 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Shop Install

            Installation Cost: $100-$250

            September 04, 2019

            Eibach Sportlines

            Cannot recommend these enough. Handling seemed to increase by 50, and instantly noticeable. The drop is perfect for a Mustang GT with performance pack wheels and tires. The rear tires sit 1 finger thickness away from the fenders, and the fronts are low as well. I added 25mm spacers on all 4 tires and I haven't seen many mustangs with better fitment!

            SebastianT

            Year: 2017 Submodel: GT

            Helpful (1)

          • 5/5

            August 22, 2019

            Lowering springs

            Really makes the car standout compared to other a GT with stock ride height

            ARskrt

            Year: 2017 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Full Day

            August 05, 2019

            2017 GT / CS

            Best Lowering springs out there for that awesome low stance. Makes the Stang handle better and the look is WOW! Install takes a little bit of effort but can be done with the correct tools. Overall I had them on my 2005 GT and now on my 2017 GT/CS

            CaliforniaGT

            Year: 2017 Submodel: GT

            Helpful (1)

          • 5/5

            Installation Time: Afternoon

            July 30, 2019

            Get low!

            Great night and day, very easy install makes a big difference with handling

            Westrock

            Year: 2017 Submodel: GT

            Helpful (0)

          • 5/5

            July 28, 2019

            Mustang looking ANGRY!

            Aggressive drop I was looking for! best on the market.

            mustanglover

            Year: 2017 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Afternoon

            July 25, 2019

            Eibach FTW

            These lowering springs really add the look most people go for in mustangs. Very easy to install and with a set of camber bolts it was very simple to align as well.

            Ace

            Year: 2019 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Afternoon

            July 16, 2019

            Best ride for the price

            It a lot stiffer than factory, but rides good and makes the over all appearance look amazing. Well worth it!!!

            BertH

            Year: 2015 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Full Day

            July 15, 2019

            All Over Great

            The Springs bring the car to a new level of low this plus the Eibach Spacers make the car look EXTREMELY aggressive.

            Wildnam

            Year: 2016 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            July 08, 2019

            Awesome stance

            Lowers the car perfectly for an aggressive stance with my new wheels

            Jpilski

            Year: 2018 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Afternoon

            July 05, 2019

            Great look. Perfect height

            I had a buddy of mine install these for me in his shop. The car came out beautiful. It is not slammed but noticably lower. It drives sportier and stiffer and handles better. I just love the perfect lowered height that these springs give

            Declan

            Year: 2016 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Afternoon

            June 18, 2019

            Eibach sportline springs

            Highly recommend these, had performance shop install them, they ride surprisingly well, I have had no issues with weird noises from them and the look I cant say enough about how impressed I am

            JamieL

            Year: 2017 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Afternoon

            June 17, 2019

            Really lower than expected

            I knew this was going to make my car low but, I have absolutely no wheel gap

            BoredOffline

            Year: 2015 Submodel: GT

            Helpful (1)

          • 5/5

            Installation Time: Shop Install

            Installation Cost: $100-$250

            June 07, 2019

            Great Springs

            These are the only springs I've run on all 3 of the S550's I've had throughout the years. I think this is the best bang for your buck with the best looking drop.

            Adelaide

            Year: 2018 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Full Day

            June 03, 2019

            Straight forward install

            I've done a set of these before on my 15, so the installation wasn't so bad this time. Put a new set of tires on and aligned before doing a 900 mile drive. Yes, it's a stiffer ride but that's to be expected. Response and feel are everything I expected from Eibach. Handling is exceptionally better than OEM, though it also makes it obvious that the S550 would benefit from some front end down force at high speeds.

            Robtaz

            Year: 2017 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Afternoon

            May 28, 2019

            Sportline springs

            Bought the springs and had them installed by a friend and it makes the car look nice and really loving the the setup I got going on.

            AlexxF

            Year: 2017 Submodel: GT

            Helpful (0)

          • 4/5

            Installation Time: Afternoon

            May 27, 2019

            ehhhhhhhhhhhh

            looks awesome, rides rough but thats what you get on drop springs. i like them personally but only issues being they make weird noises when hitting bumps and be careful on tire height bc the spring do get low so don't go too wide or high you have issues.

            maxlallerstedt

            Year: 2015 Submodel: GT

            Helpful (0)

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