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Eibach Sportline Lowering Springs (15-19 GT w/o MagneRide)

Market Price $327.78 You Save 10% ($32.78)
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$295.00

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  • Item 384461

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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 2019 Performance Pack or MagneRide Equipped Vehicles
    • Fits 2015-2019 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 2015-2019 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 2015-2019 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 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?

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    Questions & Answers (90)

    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 (8)

    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 (8)

    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)

    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 (3)

    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 (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
    Just installed this kit and i love how my car sits now. What size spacers can I use on my 2015 GT Performance Package mustang to get the fitment i see in your pictures? also, do i need castor/camber plates to compensate for the drop? 0 answer
    Will my tires rub with 255/45/19 in the front ? 1 answer
    Will I need camber plates/bolts for these with 9/10.5 staggered 245/35r20 and 285/30r20? 0 answer
    Im trying to understand how the spring rate works. If i put these on my 18 GT with 275/35/20 tires in the front and 295/35/20 in the rear there should not be any rubbing issues. The springs only compress an additional inch when the rated weight is reach? What about parking lot speed bumps (i think they are standard size) Do think any scraping if entering at an angle? 1 answer
    I have a 2015 GT Performance pack with 20-inch wheels that are wrapped in 315/35/20 Pirelli tires in the rear. Can I get away with the sportline kit without the rubbing instead of the PRO kit, since the drop on the PRO kit is very minimal in the front? Please advise the best option in any case as I dont mind going with any brand for that matter. Thank you very much in advance. 1 answer
    Why are the eibach sportlines able to fit on a 2018 GT performance package but not a 2019 performance package both without MagneRide? 1 answer
    Do these springs require a bump stop and if so is it sold with the spring kit here? 1 answer

    Recommended For You

    Customer Reviews (100+) Write a Review

    Overall Rating 4.9

    out of 5 stars

    Installation Time:Full Day

    Installation Cost:$100-$250

    • Handling Improvement 4.662722 4.7
    • Ride Quality 4.532545 4.5
    • Appearance 4.943787 4.9
    • Bang For Your Buck 4.843195 4.8



    • 5/5

      Installation Time: Full Day

      February 18, 2019

      Awesome Springs

      These springs got rid of the monster truck wheel gap on black accent package wheels. Paired well with 25mm spacers - no rubbing. Springs also help with nosedive and body roll.

      JasonW

      Year: 2017 Submodel: GT

      Helpful (0)

    • 4/5

      Installation Time: Shop Install

      February 18, 2019

      Awesome

      Been on the car about a week, so far, so good, no rubbing or clearance issues.

      Jeff

      Year: 2017 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Afternoon

      February 18, 2019

      Eibach sportline lowering spring

      I highly recomend this product the car look amazin I love it

      JCRUZ30

      Year: 2019 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $500-$1000

      February 11, 2019

      Legit

      Put on a performance pack 2017. Michelin as3 plus 285 tires in front and rear. Ride quality is a bit better shockingly, not sure bout them pp springs. No increased noise or rubbing. Handling is much improved and those loopy on and off ramps are a blast. Performs as advertised

      ClintY

      Year: 2017 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Afternoon

      February 08, 2019

      Amazing ride!

      Could not be happier with this springs! Installation took just over 2 hours, paired with Maximum Motorsports Caster Camber Plates. As soon as I pulled out of the driveway, it was instantly noticeable with the little lip I have at the end. Ride isn't as stiff anymore, and is fairly forgiving. Car corners like a beast now, and no more nose diving when I have to get on the brakes. The second I took the car off the jack stands, the stance was instantly noticeable! Absolutely amazing! All that wheel gap of these S550's is gone! Once the springs finally settled, it was even better. Could not be happier with this purchase! Note: Go get an alignment about a week after the install, once the springs have time to settle.

      TimothyB

      Year: 2017 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Afternoon

      February 03, 2019

      Great upgrade

      I daily drive my 18 gt in Houston Texas these springs present the car the way it should look off the showroom. Personally I noticed the body roll completely eliminated, lower center of gravity makes for faster acceleration out the apex. I went to a drag racing event this weekend called coyote shootout, the springs helped not hurt so be aware of bad reviews out there, these can be used for drag racing. If you got the cash buy these. Find a lift for this job we did this in three hours, with an alignment afterwards. Also had access to a professional spring compressor mounted to a wall.

      TrevorL

      Year: 2018 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Afternoon

      February 02, 2019

      Perfect fit!

      I’m leaving this review because I had a difficult time finding whether or not these springs would cause rubbing issues with my wheels. My setup is a 2019 GT PP with 305/30/20 and 275/30/20. Installation was effortless and the final result is perfect, no rubbing. Leaves about a finger gap between the rear wheel and the fender. Definitely recommend for someone with a similar setup. My rears are Nitto NT05s so if you have a 35 or 40 tall tire compare the diameter to my setup to check clearance!

      Toledo5189

      Year: 2019 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $250-$500

      January 25, 2019

      Great Stuff

      A

      DennisA

      Year: 2017 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Afternoon

      January 22, 2019

      Looks good low

      It’s a perfect fit with my set up 20x10 Square Zero rubbing.

      Chris

      Year: 2017 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Afternoon

      January 21, 2019

      Impressed

      Really makes the car look sharper. Still rides smooth and the car hooks very well with these springs.

      RonaldB

      Year: 2019 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Shop Install

      January 18, 2019

      17 GTPP

      Very impressed with the handling and stance! I would recommend this product to anyone looking into improving handling and the stance of their Mustang. AM came through for me again!

      LarryC

      Year: 2017 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $250-$500

      January 13, 2019

      Low and Cool

      I love the springs and like the way the car now drives. Should have done sooner. I did get me car aligned after installation and it drives like video game. 2017 GT 5.0 PP w/ a few Mods for additional HP

      DavidM

      Year: 2017 Submodel: GT

      Helpful (3)

    • 5/5

      Installation Time: Afternoon

      December 16, 2018

      Easy Install Looks Great

      Install was easy enough, if you do it yourself you'll need a caliper tool to get the front back on. It got rid of a bunch of wheel gap which was nice.

      DericL

      Year: 2018 Submodel: GT

      Helpful (3)

    • 5/5

      Installation Time: Afternoon

      December 13, 2018

      Perfect drop

      Perfect drop looks way better and kills wheel gap. Only thing better than these springs are bags

      angelow5point0

      Year: 2017 Submodel: GT

      Helpful (4)

    • 5/5

      Installation Time: Full Day

      December 13, 2018

      Eibach springs

      Great fitment made a huge different look on my af I love it.

      FernandoE

      Year: 2015 Submodel: GT

      Helpful (3)

    • 5/5

      Installation Time: Full Day

      December 11, 2018

      Car looks awesome

      Great product! Car looks awesome and drives great!

      AprilC

      Year: 2016 Submodel: GT

      Helpful (3)

    • 4/5

      Installation Time: Afternoon

      December 11, 2018

      Great Springs, first time installer

      The springs are as expected, after all, they are made by Eibach. Everything came nicely packaged, and included new dust boots with bumpstops. I am definetly a beginner, and was able to install these with minimal issues. Follow the install video and you will be golden. Rear shocks have a protruding metal piece, making the new bumpstops difficult to put on (use some muscle, do not drill out).

      Nathen

      Year: 2015 Submodel: GT

      Helpful (5)

    • 5/5

      Installation Time: Afternoon

      December 06, 2018

      Sportlines

      Parts came in pretty fast quality is good would not expect anything less from eibach

      CristianR

      Year: 2015 Submodel: GT

      Helpful (3)

    • 4/5

      Installation Time: Afternoon

      December 03, 2018

      Not disappointed

      The only con: I thought it would have a more raked look No scrubbing and definitely feels flat cornering

      Beastmode1

      Year: 2018 Submodel: GT

      Helpful (4)

    • 5/5

      Installation Time: Shop Install

      December 02, 2018

      Great addition

      Improves handling, ride and looks. I wish I had done this mod sooner!

      BruceG

      Year: 2015 Submodel: GT

      Helpful (3)

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