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

Market Price $294.30 You Save 10% ($29.43)
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$264.87

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  • Item 384456
  • MPN# 35145.140

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    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”
    • Clears Stock and Aftermarket Wheels & Tires.
    • Not Compatible on 2019 Performance Pack or MagneRide Equipped Vehicles
    • Fits 2015-2019 GT Mustangs

    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 2015-2019 GT Mustangs.

    Technical Note. The Springs are not compatible on 2019 Model Year vehicles equipped with the MagneRide Suspension or Performance Pack.

    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 2019 Details

    CA Residents: Warning: California's Proposition 65

    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?

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    Questions & Answers (18)

    5 Top Rated Questions

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

    • 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.

    Helpful (5)

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

    • 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.

    Helpful (1)

    Hi, does this Eibach pro-kit come with new bump-stops or other needed Hardware or only the springs ? thx

    • This kit will only include the front and rear set of springs.

    Helpful (0)

    after installing this spring kit, there were some squeezing sound while driving at low speed, or making turns. Is there any way to get rid of it? Or did I miss anything?

    • We would advisemaking sure that the installation was performed properly and that everything is tightly secured on the vehicle. 

    Helpful (0)

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

    • 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.

    Helpful (0)
    Post Your Question
    10 More Questions
    Can I buy just the eibach pro kit only to lower my car. Or do I have to buy other equipment? 1 answer
    Can I use these spring to lowering ecoboost? I would like minimal drop . 1 answer
    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 1 answer
    Hello, will this cause issues with the independent rear suspension? 1 answer
    I have the American Muscle PP style rims 275/35/20 in the front and 315/35/20 in the back will these springs work for tires that size? 1 answer
    What Offset is Recommended for 20X10 rims or for 19x9.5 or 19x10 rims. Looking at a couple different rims and was wondering what is the recommended wheel sizes. 1 answer
    Hello will these fit with the following 275/35/20 20x10 Also, will it require an alignment? 1 answer
    How do these lowering springs effect the wheel hop on 16GT 1 answer
    Will you need a caster camber kit for these springs 1 answer
    Will this still clear a rear tire at 305/35/19? 1 answer

    People Who Bought This Item Also Bought

    Customer Reviews (80) Write a Review

    Overall Rating 4.9

    out of 5 stars

    Installation Time:Full Day

    Installation Cost:$100-$250

    • Handling Improvement 4.529412 4.5
    • Ride Quality 4.632353 4.6
    • Appearance 4.897059 4.9
    • Bang For Your Buck 4.823529 4.8



    • 5/5

      Installation Time: Shop Install

      Installation Cost: $250-$500

      November 09, 2018

      rides like stock

      i only notice the difference when a corner, the daily driving on these is excellent.

      DomR

      Year: 2017 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Afternoon

      October 18, 2018

      Great upgrade!

      if you dislike the cadillac handling on the mustang then this would directly fix that, now the stang feels planted and alot more stable and inspires confidence in the turns, something i couldn't say before.

      91blacknotch

      Year: 2018 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Afternoon

      September 27, 2018

      NICE RIDE

      ONLY DID THE 1", RIDE VERY SIMILAR TO STOCK, BIG DIPS ON THE ROAD OR BAD PAVED ROADS YOU FEEL A SLIGHT DIFFERENCE.

      OLDGUY

      Year: 2018 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Weekend

      September 25, 2018

      Springs

      Rear can be difficult and may need a professional to put on but it sit beautifully love them

      CarlosE

      Year: 2015 Submodel: GT

      Helpful (1)

    • 5/5

      September 23, 2018

      Eibach pro for the win

      Perfect balance of lowered stance and ride quality

      ZachM

      Year: 2018 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $250-$500

      August 23, 2018

      Awesome springs at a great price!!

      Lowered the car about an inch, I was a little worried It would affect the original ride but I was completely wrong. The car handles great!! Very happy with these springs.

      Michelle

      Year: 2018 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $100-$250

      August 14, 2018

      Great look!’

      Great look for the stang!! No rubbing issues what so ever with my 275/20 wheels n tires.

      Jj7564

      Year: 2016 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Shop Install

      August 13, 2018

      Love my cover

      I HAVE THE PRO KIT LOWERING SPRINGS AND CAR HANDLING HAS INCREASED GREATLY LOVE THE RIDE

      LeslieH

      Year: 2018 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Weekend

      August 09, 2018

      Looks great, feels better

      Wow did these have a huge impact on driving. Currently this is my only suspension mod. Chassis roll feels like it’s cut in half, the car feels extremely planted going through corners and even when launching in a straight line. In terms of looks I went from a 2.5 finger gap from the wheel to fender to a 1 finger gap. I’m no longer driving a monster truck. Installation was sorta a pain but with patience and the right tools it wasn’t all too bad. Just plan on not having a car for a day or two.

      ChrisD

      Year: 2017 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Afternoon

      July 27, 2018

      Eibach Pro-kit

      I love the look of this lowering kit. It gave my mustang a sharper style as well as improved handling and definetly reduces the amount of hood lift on take off. recommend to anyone thinking about this kit 10/10

      ColynS

      Year: 2018 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Afternoon

      July 24, 2018

      Akron D

      Good Performance Springs for the heavier Coyote Engine! It lowers the car and keeps the ride quality...

      AkBad504

      Year: 2017 Submodel: GT

      Helpful (3)

    • 5/5

      Installation Time: Less than 1 Hour

      July 24, 2018

      Excellent

      Great look to the car with the drop not to low to where its scraping the ground and excellent handling improvement.

      NicholasP

      Year: 2017 Submodel: GT

      Helpful (3)

    • 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 (3)

    • 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 (2)

    • 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 (3)

    • 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 (3)

    • 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 (4)

    • 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 (2)

    • 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 (4)

    • 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 (4)

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