Free Shipping On Orders Over $49. Details

Talk to a Mustang Expert
1-877-887-1105
Every day 8:30AM EST - 11:00PM EST
Win 1 of 2 $15,000 Mustang Builds! Enter To Win!

Eibach Pro-Kit Lowering Springs (15-18 GT w/o MagneRide)

Market Price $294.30 You Save 10% ($29.43)
Starting At

$264.87

FREE Shipping

  • Item 384456
  • MPN# 35145.140

Local Install Shops

Quoted installation from $125

View 3 Shops

near 19355 (change)

Sorry, please enter a valid US or CA postal code
We're sorry, zip can't be updated at this time.

Will this fit your Vehicle?

In Stock Ships same business day.
Ship to: ASHBURN - 20146
Sorry, please enter a valid US or CA postal code
We're sorry, zip can't be updated at this time.
    Create a list
    Add to New List

    Saved - View your saved items

    We're sorry. We couldn't save this product at this time.

    Features, Video & Details

    • Aggressive Stance
    • Improves Handling
    • Lowers Center of Gravity
    • Progressive Spring Rate
    • Coupe Drop: Front - 1.1” Rear - 1.0”
    • Convertible Drop: Front - 1.2” Rear - 1.1”
    • Not Compatible on MagneRide Equipped Vehicles
    • Fits 2015-2018 GT Coupe and Convertible Mustangs
    • Clears Stock and Aftermarket Wheels & Tires.

    Review & Installation Video

    Review & Install Video

    Hey, guys, Stephanie with AmericanMuscle.com, here with the Eibach Pro-Kit Lowering Springs for 2015 and up S550 GT Mustangs. The Eibach Pro-Kit lowering springs are going to be a good option for the S550 GT owners out there who are looking for a lowering spring that's going to improve the looks of the GT, but also still has a comfortable ride quality as well. And for those of you that don't mind spending a few dollars more for these qualities. Lowering springs have a big impact on the S550, as they can completely change the looks of the car, but at the same time, a lowering spring isn't always just about lowering a car. Any lowering spring can lower the car, but the Eibach Pro-Kit is designed with handling in mind as well, which makes them a great choice for those that are concerned with improving handling, and keeping as comfortable of a ride quality as possible. These are progressive-rate springs, which concentrate on providing balance at all times, in order to improve handling, and they're going to lower the car just over one inch in the front, and one inch in the rear. The drop will change slightly, depending on if the car is a coupe or convertible, due to the weight differences between the models. This drop's going to eliminate a lot of the wheel gap that the GT has from factory, and it's doing to leave the car sitting just above the tires. A one inch drop is pretty standard across the board for the S550, and like I said, a one inch drop is pretty significant for these cars. But I wouldn't say that this is a huge drop, so if you're looking for more drop, Eibach does have the Sportline springs that will drop a half inch more, but they will ride differently than the Pro-Kit. They're just a little bit more aggressive spring all the way around. Now I said that the one inch drop with the Pro-Kit is significant for the S550, and I mean significant in both looks and performance changes. This drop will lower the car's center of gravity enough to have handling benefits and some traction benefits. Squat is reduced during acceleration, and so is some of the wheel hop that the car has. The springs are also going to help with body roll in the corners, and nose dive during braking. All of this means that these springs are generally speaking going to tighten up and improve handling in nearly all aspects. The Pro-Kit's also a great option for the daily drivers out there that aren't going to drop the car so low that it's difficult to drive places, but they are going to drop it enough to improve looks and handling. They're also that progressive spring rate that I mentioned earlier, so they aren't going to have a harsh ride quality, and that's why I consider these one of the best springs for the dailies. I would consider the ride quality nearly equal to the factory ride quality, slightly stiffer, but really nothing to complain about, and I don't have anything negative to say about it. I do want to 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 required. The drop is only just over one inch, so in all reality, the ability to get the alignment within spec is still there with the small drop. If these were the Sportline springs that were dropping you one and a half inches, I might suggest caster camber plates. It never hurts to have a set of adjustable plates though, so if you've got the extra cash, I'd say go ahead. They're just not required in this case. 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 drop, the more forgiving progressive spring rate, and also the low mileage of the components. If your shocks and struts had 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 one of the middle of the road options. 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 Sportline springs. If you're just looking to get your car lower, and you're not concerned with ride quality, there are some on the site that cost a little less, and will get you where you need to be. On the other hand, if you are concerned with keeping a nicer ride quality, then 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 the install, so I would 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 a few tools, including a spring compressor, so make sure you have that before you start the install. 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 in the same way they came out, and the install is the same for both sides. The rear is where things are a little different, but nothing crazy here. Essentially, the IRS subframe will be dropped, along with the rear shock mount, so you can slide the rear spring 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 Pro-Kit lowering springs offer a balance between a spring that will leave the car sitting about an inch lower, and with a comfortable ride quality. The springs give what I'd consider an aggressive look to the S550 that is balanced, and will work to improve handling as well. 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.

    Improves Handling. These Eibach Pro-Kit Progressive Rate Springs will lower your S550 GT Mustang's center of gravity, reducing squat during acceleration, body roll in the corners and excessive nose-dive under hard braking. A set of Eibach Pro-Kit Lowering Springs are great for daily driving, street and even track use.

    Improves Appearance. Not only does a set of Eibach Pro-Kit Springs improve the handling of your S550 GT, but it also improves it's over all appearance by lowering the ride height to get rid of that lifted 4x4 look that they roll out of the factory with for a more aggressive stance.

    Progressive Design. Eibach's proprietary progressive spring design provides the ultimate balance to deliver aggressive good looks and high performance handling, without ever compromising safety or ride quality.

    Clears Stock and Aftermarket Wheels & Tires. These lowering springs were engineered to be compatible with your stock 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 Eibach Pro-Kit Springs are designed to fit both coupe and convertible 2015-2018 GT Mustangs.

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

    Estimated Coupe Drop: Front - 1.1" Rear - 1.0"

    Estimated Convertible Drop: Front - 1.2" Rear - 1.1"
    Front Alignment: Rear Alignment:
    OE Camber = -0.8 deg (+/-0.8 deg)
    OE Caster = 7.2 deg (+/-0.8 deg)
    OE Toe = 0.0 deg (+/-0.2 deg)
    PRO-KIT Camber = -1.0 deg
    PRO-KIT Caster = 7.5 deg
    PRO-KIT Toe = 0.2 deg
    OE Camber = -1.2 (+/-0.8 deg)
    OE Toe = 0.1 deg. (+/-0.2 deg)
    PRO-KIT Camber = -1.4 deg
    PRO-KIT Toe = 0.2 deg

    Fitment: 2015 2016 2017 2018 Details

    What's in the Box
    • (2) Front Lowering Springs
    • (2) Rear Lowering Springs
    Installation Info
    Tech Specs
    Springs Specifications
    Spring Rate: Front: 200-314 lb/in.
    Rear: 800-914 lb/in.
    Usage: Street
    Year: 2015-2017 GT Model: Coupe
    Convertible
    Progressive or Standard: Progressive Estimated Drop:

    1.1"F / 1.0" R
    1.2"F / 1.1" R

    Will it fit my Mustang?

    You Might Also Like

    Customer Photos (62) Submit Your Photo

    View All 62 Photos

    More Products You Might Like

    16 Questions / 16 Answers

    Ask a Question

    Will these springs lower a Performance package GT the same they would a normal GT?

    mike

    • The Eibach Pro-Kit Lowering Springs (15-17 GT) will lower a GT with the Performance Package. The Performance Pack gives the car around a .5" drop while these springs give the car 1.1" drop in the front and a 1.0" drop in the rear. So, you will be seeing a .5" drop since you are already slightly lower than stock.

      AshleyK

    Helpful (4)

    will the Eibach pro-kit lowering springs work with my 1" wheel spacers on the 255/40r19 wheels? Thank you

    Jim

    • The Eibach Pro-Kit springs will work with the 1" wheel spacers ona 255/40R19 as we can confirm fitment of those tires up to a 2" drop.

      KevinD92

    Helpful (1)

    Would these fit with 305/30r20 on a 10.5 in the rear??

    ShaneM

    • Yes, these lowering springs will fit just fine with a 10.5" wide wheel in the rear with 305/30/20 tires and will not have an issue with clearance.

      AMJalisaB

    Helpful (0)

    Can I buy just the eibach pro kit only to lower my car. Or do I have to buy other equipment?

    Dee

    • No other components are required to install the Eibach Pro-Kit Lowering Springs, however we highly recommend new shocks and struts, as the stock units will have a reduced service life when used at a lowered ride height.

      AMRobD

    Helpful (0)

    Can I use these spring to lowering ecoboost? I would like minimal drop .

    MartinB

    • It is not advisable to install the Eibach Pro-Kit Lowering Springs in an Ecoboost or V6 model, as the springs are set up for the weight of the GT, installed in the Ecoboost or V6, you will notice a higher ride height inn the front, which can effect handling.

      AMRobD

    Helpful (0)

    I have a 2015 GT with the Performance Pack with 305/35/20 tires on 10x20 super snake wheels on the rear, 255/35/20's up front on 9x20's. Will I have any tire rub issues in the rear with this lowering kit ? And how will the car handle and drive compared to the P.P. suspension the car came with ? Thanks, Steve

    steve

    • The addition of these Eibach Pro-Kit Lowering Springs will allow for better handling when compared to your current suspension. Your wheels and tires will also indeed fit once these springs are installed.

      JeffAM

    Helpful (0)

    People Who Bought This Item Also Bought

    Customer Reviews (68) Write a Review

    Overall Rating 4.9

    out of 5 stars

    Installation Time:Full Day

    Installation Cost:$100-$250

    • Handling Improvement 4.5 4.5
    • Ride Quality 4.607143 4.6
    • Appearance 4.892857 4.9
    • Bang For Your Buck 4.785714 4.8



    • 5/5

      Installation Time: Afternoon

      July 11, 2018

      Exactly what I wanted

      Makes the car lower keeps stock ride quality. Takes a good couple hours to install

      BrianC

      Year: 2017 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Afternoon

      July 11, 2018

      Perfect height

      Love the lowered look of new springs. Not much of a noticeable ride difference. It feels more planted in corners. I cheated and installed with a mechanic buddy in less than 2 hours. Simple and straightforward install just much easier with a hoist and a professional looking over your shoulder.

      JasonJ

      Year: 2017 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Afternoon

      June 27, 2018

      Fantastic!!!

      Good springs and fantastic price!! The car now is more aggressive, bad look and more sport drive feeling Fast shipping

      Andreaccio

      Year: 2015 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Afternoon

      June 12, 2018

      Great springs

      These should have been the performance pack springs. They are plug and play with no need for extra parts or a alignment. The ride is a bit stiffer but in a good way. The handling is much better and it looks more aggressive.

      BrianS

      Year: 2017 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Afternoon

      June 06, 2018

      Perfect

      I'm a longtime Eibach customer. This time I was looking for something that would ride well (Baltimore streets), handle well, and give me a more aggressive look. The Eibach Pro-Kit worked perfectly. The ride is slightly harder, but nothing to complain about, but the cornering is much flatter, and the drop is exactly what I wanted.

      Chris

      Year: 2017 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Full Day

      May 31, 2018

      Awesome Springs

      These springs are awesome! The firmness of the ride is almost like the stock performance pack springs. I like the one inch drop. With just a jack and jack stands, it took about 8 hours to install. I would recommend these springs.

      TonyD

      Year: 2017 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Shop Install

      May 23, 2018

      Nice!!!!

      The perfect amount of lowering. The car looks great and is down about an inch. It still rides very smooth.

      NicholasM

      Year: 2016 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Afternoon

      May 10, 2018

      Pro Kit Springs

      Installed these in the garage on jack-stands. Not an overly complicated job by any means, but having a big a** hammer to get the spline bolts out helps tremendously. Took about 4-5 hours by myself. The car (to me) rides better than it did on the PP springs, the stance is awesome, and handling has been improved (I still think the cars are under bared and need beefier sway bars) but body roll is all but gone and feels a lot tighter. Car now sits 27' in the front and 27.1' in the rear. I have a pretty steep driveway so the Sportlines were out of the question. Wouldn't change anything as far as my choice, can drive it anywhere without issues of scraping.

      BrettA

      Year: 2016 Submodel: GT

      Helpful (2)

    • 4/5

      Installation Time: Afternoon

      May 01, 2018

      Lowering Springs by Eibach

      Car now have an agressive and lower stance. Handles better but not good in absorbing shocks when going over bumps in road.

      RonaldB

      Year: 2017 Submodel: GT

      Helpful (2)

    • 5/5

      April 29, 2018

      Awesome looking.

      It took us about 4 to 5 hrs,to install it and do an alignment. What a difference.Driving it,turning in corners it still has a bit of a lean.Definitly happy with the stance of it.

      TomD

      Year: 2015 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Afternoon

      April 23, 2018

      Pro kit lowering springs

      What a difference in looks and handling. Corners like it's on rails. Eliminated a lot of the wheel hop when launching.

      KeithG

      Year: 2017 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $250-$500

      March 31, 2018

      Perfect stance

      Had these springs installed for my 15 mustang gt convertible with 15mm spacers. Car looks great and handling feels much better.

      JanneU

      Year: 2015 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $250-$500

      February 20, 2018

      Looks as it should

      These springs are great. They give you're car a great look and better feel that's for sure. I would have done them myself but unfortunately I don't have the patients for that. Hahaha! I would recommend wheel spacers as well.

      MatthewB

      Year: 2017 Submodel: GT

      Helpful (4)

    • 5/5

      February 08, 2018

      I Bach You Up Eibach... HaHaHa! That's lame...LOL

      Very nice spring! Stance is solid! Ride is awesome... better than stock because you actually feel lower believe it or not?! Center of gravity is better. Stock is totally like a 4x4... Sport Line springs may look a hint better to a very well trained eye (3/8 of an inch ) "seriously" but no rubbing.... no worries on ride quality at all! And it's a progressive spring w/o needing camber/ caster plates to save your shocks! I'm toying w/ going w/ the sport line... but the difference in looks is almost unrecognizable?! IDK?! I kind of just wish the front was a tad lower... but that's my OCD!

      CoyoteGT

      Year: 2015 Submodel: GT

      Helpful (6)

    • 5/5

      Installation Time: Less than 1 Hour

      January 17, 2018

      Pro kit stings are great

      Rides like stock on the highway but handles much better through the turns and lowers it just enough

      BradleyE

      Year: 2017 Submodel: GT

      Helpful (3)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $100-$250

      November 25, 2017

      Perfect Stance!

      I put these springs on my Convertible with the factory 20"X9 wheels and it sits at perfect height! it lowers it a little over 1" for a Convertible and I did have issues with the tires rubbing at first because of the spacers. After I got it lined up correctly with STEEDA adjustable rear Toe links and sub frame alignment kit it doesn't rub at all in the rear. I rub a little in the front on big bumps but only because of the 1" spacers which I shouldn't have in the front nut love the look so don't mind rubbing a little once in awhile. Definitely glad I didn't get the Sportline with the more aggressive drop because it would be too much for 20" wheels with spacers!

      ChrisVegas777

      Year: 2016 Submodel: GT

      Helpful (3)

    • 5/5

      Installation Time: Full Day

      November 12, 2017

      Car sits like it should now.

      Nice springs. Looks great. I can’t tell any difference in ride quality compared to stock. I do notice that there is way less front end lift when I get on it. I have never installed springs before and was able to do it using YouTube. Took about 6 hours.

      MattB

      Year: 2015 Submodel: GT

      Helpful (6)

    • 5/5

      Installation Time: Afternoon

      October 13, 2017

      Great quality springs!

      Installed these on my 2015 gtpp and wow what a difference! They lowered the car a perfect amount in my opinion, not to much that is scrapes on everything but low enough that its noticable. I highly recommend these springs and honestly i feel my car rides better and handles bumps way better than it did with my stock performance package springs. You cant go wrong with Eibach when it comes to springs and if your looking for that classic muscle car rake these springs will do it!

      CZ

      Year: 2015 Submodel: GT

      Helpful (4)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $500-$1000

      October 12, 2017

      Sweet!

      Completely transformed look of car and handling is super smooth! Be prepared to have extra money for install.

      MarcelinoG

      Year: 2015 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Afternoon

      October 08, 2017

      Body roll eliminated!

      Easy install if you have access to a lift. The ride quality is unreal, responsive is an understatement when hitting hard turns. The little body roll the car did have is now gone.

      03gt

      Year: 2017 Submodel: GT

      Helpful (2)

    Related Mustang Categories