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Eibach Pro-Kit Springs - Coupe & Convertible (11-14 GT, V6, BOSS)

Market Price $294.30 You Save 10% ($29.43)
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  • Item 47803
  • MPN# 35125.140

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Features, Video & Details

  • Lowers Center of Gravity for Improved Handling
  • Aggressive Muscular Stance
  • Improves Fuel Economy
  • Progressive Spring Rate
  • Drops GT: 1.0” Front, 1.5” Rear
  • Drops V6: 0.8” Front, 1.2” Rear
  • Drops BOSS: 0.6” Front, 1.0” Rear
  • Fits 2011-2014 GT, V6 and BOSS
  • Clears Stock and Aftermarket Wheels & Tires.

Review & Installation Video

Review & Install Video

Hey, Justin here with, and I’m going to be talking a little more about the Eibach Pro kit springs, fitting your 2011 and newer Mustang. If you’ve been modding cars for any duration of time, then chances are you’re very familiar with the name Eibach, that’s because they are without a doubt one of the biggest and most trusted names in aftermarket suspension, and have been for quite some time. So what can you expect from Eibach’s pro kit springs? Well, drop wise the pro kit is pretty conservative compared to other springs, take Eibachs sport line for instance, the drop is roughly a half inch to an inch in front, and about an inch to an inch and a half in the rear depending on your ride. We do list the model specific drops under the description tab on this product page. So basically, if you don’t want your ride to be slammed, the pro kit is a great choice, having said that the drop is enough to get rid of some of that unsightly wheel gap, ultimately giving your ride a more aggressive stance. So you know what to expect from the Pro kit appearance wise, but what about your handling performance? Well, a good set of progressive rate springs like these Eibachs are going to do more than you think. They’re going to help eliminate squat on hard launches, nose dive during braking, and body roll on the corners. Basically the car is going to feel more capable and more responsive all around, ultimately making for a better driving experience. So, does installing these new springs mean you have to change out your shocks and struts? Well, that’s up to you, ultimately you can’t go wrong by pairing these new springs up with some performance shocks and struts, that are better designed to work with that lower ride height, and higher spring rate, however since the pro kit does offer a pretty mild drop, your factory stuff should work fine as long as everything’s in good shape, however if it’s not then you might want to consider upgrading or even checking out Eibach’s pro system plus, which does come with everything you need to completely revamp your suspension. Installing a new set of springs isn’t exactly something I’d recommend for the first time wrencher out there, this is because you need to use some specialized tools like a spring compressor, to remove the factory springs and install the new Eibachs. Because of this we highly recommend leaving this one in the hands of the professionals, on the other hand, if you know your way around the garage, and you have access to all the tools needed, just leave yourself about 4 hours to get the job done. Whenever you alter the ride height of your vehicle, you should ideally take it to an alignment shop just to get everything checked out, especially your camber. If you do need some additional adjustment, Eibach offers a very affordable solution in the form of their Camber adjustment bolts, just be sure to let the springs settle about a week or so before you take the car in. So if you’re looking for a relatively mild drop that will have a big impact on your car’s handling performance, then be sure to check out Eibach’s pro kit springs available right here at

Performance Handling. These Eibach Pro-Kit Progressive Rate Springs will lower your 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 Springs are great for daily driving, street, and even track use.

Aggressive Appearance. Not only does the Eibach Pro Kit Spring Set improve the handling of your Mustang, but it also improves it's appearance by lowering the ride height to get rid of that ugly 4x4 look that they roll out of the factory with for a more aggressive stance.
  • Lowers 2011-2014 GT Coupe: Front - 1.0”, Rear - 1.5”
  • Lowers 2011-2014 GT Convertible: Front - 1.0”, Rear - 1.5”
  • Lowers 2012-2014 BOSS Coupe: Front - 0.6”, Rear - 1.0”
  • Lowers 2011-2014 V6 Coupe: Front - 0.8”, Rear - 1.2”
  • Lowers 2011-2014 V6 Convertible: Front - 0.8”, Rear - 1.2”

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.

Better MPG. Independent testing has shown that lowering a car's ride height improves aerodynamic efficiency by forcing more air over the car and less underneath reducing drag, resulting in higher top speeds at the track and better fuel economy on the highways.

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 Springs are designed for use on the 2011-2014 GT, V6 and BOSS Mustangs.

Fitment: 2011 2012 2013 2014 Details

What's in the Box
  • (4) Lowering Springs
  • (2) Boots
Installation Info
Tech Specs
Springs Specifications
Spring Rate: Front: NA lb/in.
Rear: NA lb/in.
Usage: Street
Year: 2011-2014 GT, V6, BOSS Model: Coupe & Convertible
Progressive or Standard: Progressive Estimated Drop: 1.0"F / 1.5" R
0.8"F / 1.2" R
0.6"F / 1.0" R
Will it fit my Mustang?
  • Boss 302 - 12, 13
  • V6 - 11, 12, 13, 14
  • GT - 11, 12, 13, 14

People Who Bought This Item Also Bought

Most Helpful Reviews

Huge improvement

Car looks and handles great. The springs even improve braking.

Helpful (1)

Perfect stance

EIBACH prokit springs offer a great ride and just the right stance.

Helpful (1)

Overall Rating 4.8 out of 5 stars
Read All 98 Reviews

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18 Questions / 15 Answers

Ask a Question

Is an adjustable panhard bar really needed with this set? And how are the speed bumps?


Helpful (3)
  • Yes and No, it really depends on what you’re looking for. If lower your Mustang is the only goal in mind cheaply as possible, then No. If getting the most out of handling ability as well, then Yes. When you drop the rear 1.5” the axle will lean 3/8” off center to the driver’s side. Not really noticeable by sight, but when you take a left hand curve your Mustang will generate more body roll to the right in comparison. Also the panhard is perfectly in line with the axle limiting right to left handling differences felt at factory level so for me it was important to have all four wheel in perfect alignment to maintain even handling characteristics, which can only be achieved with the adjustable panhard bar. I haven’t had any issues with speed bumps, but I’m also watchful for them as well. One time I thought I might have bit off more than I can chew and I drove slowly so not to bounce downward on the backside of a rather large speed bump and I was successful without bottoming out. If you go slow enough you will not get hung up and should have an opportunity to back off if you were to hear the slightest scrape.


Show 4 more answers

Does you recommend camber bolts for this product? I have 2012 GT with the Brembo kit


Helpful (2)
  • Yes, as long as it is not a track car. On the street you are fine using Camber Bolts as the Eibach Pro Kit only lowers the car about an inch in the front and 1.5" in the rear. Although this doesn't seem like much - (its not) BUT- it gets rid of the factory wheel well gaps that are so ugly. The factory suspension will only allow so much camber adjustment, so with these bolts you can fix that small amount of negative camber that will happen. Plus the camber bolts are very cheap - vs. wearing out your tires at an accelerated rate with the negative camber. How can you lose?


Show 5 more answers

I'm looking to purchase either these springs or the entire kit. I just need to verify that my Nitto NT555 G2 255/40R19 front and 295/35R20 rear tires will clear with the estimated drop of 1" front and 1.5" rear on my 2014 Mustang GT convertible.


Helpful (1)
  • These springs will fit with your NITTO NT555 G2 255/40R19's & 295/35R20's as we are able to confirm fitment of those tires with upwards of a 2" drop.


What is the spring rates for the Eiback pro kit springs?


Helpful (0)
  • Hello! Eibach does not give the spring rate for the Eibach Pro-Kit Springs


Getting ready to install these with some new Koni Yellows this upcoming weekend. Reading thru the user submitted guide (well done, Mr. Lamb!), it says the service manual recommends replacing a bunch of the bolts and nuts. I checked at my local Ford dealer, and they are expensive! Anyone have any issues reusing the originals? Thanks!


Helpful (0)
  • Replacing nuts and bolts when installing springs is recommended however it is not required.


I have a 2012 GT Convertible. First time lowering any vehicle. Will these springs work well with the Koni Strut and Shock Kit? And, to properly lower my GT, all I need are the new struts and shocks, these lowering springs, and the Eibach Camber Bolts. Right? Cheers and thank you.


Helpful (0)
  • The Eibach Pro-Kit Springs is a great set of springs to go with! They will pair up with the Koni Strut and shock kit with no issue! The only part I will recommend along with these springs will be a panhard bar. The camber bolts are not a bad idea either but are not required.


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Customer Reviews (98) Write a Review

Overall Rating 4.8

out of 5 stars

Installation Time:Full Day

Installation Cost:$100-$250

  • Handling Improvement 4.695652 4.7
  • Ride Quality 4.597826 4.6
  • Appearance 4.815217 4.8
  • Bang For Your Buck 4.673913 4.7

  • 2/5

    August 17, 2016

    Harsh on humps cat eyes , Perfect on curves

    Driving on curves has become much much better , however, the driving has become so harsh . I'm a daily user so a harsh driving doesn't make me feel comfort, I'm gonna put my stock ones again


    Year: 2013 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    May 06, 2016

    Perfect for Daily Driver.

    I started out with a track pack mustang, so my springs were already stiffer than the regular GT. I was surprised by the ride I get out of the new Eibachs, actually softened the ride over the smaller road imperfections which are abundant where I live because of lack of street maintenance here. I like the look of the lowered car very much, it's really the reason I bought these springs in the first place, the smoother ride is just a bonus. Even though the ride is better the nose does not dip any more than it did before under braking, or rise any more than before on brisk acceleration, pretty much the latter is a daily occurrence. I don't know if you would want to race with duel rate springs like these, but they work great on my daily driver. What a great product, I highly recommend.


    Year: 2014 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Full Day

    May 05, 2016

    Less is more... The perfect stance

    Perfect drop without looking overly exaggerated, and definitely gets rid of that nose dive during heavy braking and rear end dive during heavy acceleration. You don't have to worry about scrapping in steep driveways, because mine is pretty steep and didn't scrape while backing out and turning sideways. I paired these with the Koni yellows and Steeda panhard bar to center the rear end all at once, and the car has way more stability and control in the turns from the stock track pack suspension. Definitely more fun to drive during spirited driving. Feels smooth and almost stock while driving you just feel bumps in the road a little more but nothing to significant, but definitely a minor trade off to have a suspension that's ready to carve corners. If you're doing it yourself and its your first time like me, make sure to be careful when doing the front springs because the strut mounts can come apart when removing them from the front springs and cause the ball bearings inside to come out everywear which will cause you to have to reassemble the strut mounts which was very tricky (something that is not mentioned in the diy videos). The fronts took a while but the rear springs where a piece of cake.


    Year: 2014 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    December 13, 2015

    Eibach Springs

    I looked at several brands of springs before I settled on the Eibachs and I think I made the right decision. I wanted to get rid of the factory height but I didn't want to slam the car. If you want a really low car these are not what you want, but if you want a good ride with a lower spring this is the ones. I did use an adjustable panhard bar and had to go about 1/4 inch shorter than stock.


    Year: 2014 Submodel: V6 Nashville, TN

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    March 24, 2013

    Perfect stance

    EIBACH prokit springs offer a great ride and just the right stance.


    Year: 2013 Submodel: GT Blainville,Québec

    Helpful (1)

  • 5/5

    Installation Time: Full Day

    January 21, 2013

    Improved Looks, a few performance improvements, but with a little cost in ride quality

    I went back and forth deciding which springs to get and I think I made the right choice. The sportlines would have been too much of a drop and I like that the pro kit leaves a little bit of 'rake' in the ride height. I love the look of the car ('13 Red GT) with the pro kit springs. Performance: I don't really notice the car cornering better, but I do notice a difference in a straight line. Prior to the springs I could go to 4000 rpm in 2nd and punch it and it would break/start spinning and it would spin in 3rd on the summer P Zeros during the winter. Today I wanted to see how the new springs would do in that situation. Didn't spin at 4k in 2nd and it sort of jumped forward when I hit 3rd. (~50 degrees) Ride Quality: This part is tricky. I can't say that I'm thrilled with ride quality, yes I figured it wouldn't be as smooth, but the increased noise does bother me. The road noise increased on certain types of roads. If you have a bunch of newly paved roads then you won't notice it, but we have a bunch of roads paved with rocks/tar and it is loud.


    Year: 2013 Submodel: GT North Carolina, USA

    Helpful (1)

  • 5/5

    Installation Time: Full Day

    October 22, 2012

    Delivers as promised

    The one thing about my new mustang that I wasn't impressed with was the body roll inthe corners. Now my corners are almost perfectly level, and the ride as a whole is much more comfortable. Absolutely worth the money. A few lessons learned- The instructions provided on the website here were written by someone with an impact wrench. I'm not sure that the strut top nut can be removed with hand tools. A commercial grade spring compressor is worth looking for. You'll want an extra set of hands for parts of the process.


    Year: 2012 Submodel: V6 Huntsville, AL

    Helpful (1)

  • 4/5

    Installation Time: Shop Install

    Installation Cost: $250-$500

    August 14, 2012

    Pro Springs

    Great Springs nice look to my 2012 GT, however AM should list camber adjustment bolts and panhard bar as suggested parts to go along with these as they will be needed.


    Year: 2012 Submodel: GT Lovington NM USA

    Helpful (1)

  • 5/5

    Installation Time: Full Day

    July 29, 2012

    The absolute best spring system for daily drivers!

    If you encounter rough roads the Eibach Pro-Kit Springs allow for enough spring compensation to maintains full control, which the stiffer racetrack springs can easy bounce dribble your vehicle out of control. The progressive spring rate is ideal for daily driving and it feels more comfortable compared to factory. I was really amazed of the smoothness and in all honesty I wasn’t expecting that particular benefit. The handing is tremendous maintaining full control on all corners especially surprising hitting potholes, bumps, or crack filled asphalt rolling over them without wiggling loose feeling or out of line throughout the curve. There is no narrow curvy secondary North Carolina roads I will not take in an aggressive manner with full confidence and on rare occasions when I find newer smooth pavement my Mustang performs with super flat handing grip at high end speeds. You simply cannot go wrong with Eibach Pro-Kit Springs.


    Year: 2012 Submodel: GT NC

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    June 05, 2012

    Huge improvement

    Car looks and handles great. The springs even improve braking.


    Year: 2011 Submodel: V6 Tampa,Fl

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    May 29, 2012

    Perfect springs

    I went with the eibach pros because I wanted handling improvements aswell as a mild drop, and these springs exceeded all my expectations. These combined with the max profomance tires I put on have increased the car's handling proformance by miles. It's truely a pleasure to drive threw the mountains now, and I like it in the twisties even more than my honda S2000. Brake dive is severly reduced, still lifts a little under hard acceleration (I like this, so I'm very pleased that these springs left the prefect amount) and body roll is cleaned up but still present, in seemingly a perfect amount. I really recommend these to anyone looking at lowering springs. This is the way the car should have rolled out of the factory.


    Year: 2012 Submodel: GT Georgia

    Helpful (1)

  • 5/5

    Installation Time: Shop Install

    April 05, 2012

    Relieved to say... these are great!

    If you're like me, you want to personalize your car, you love high-performing and handling cars, but you don't want anything obnoxious or "hey, look at me" flashy. The stock 2011's ride is sublime - other then a bit extreme in the braking nosedive, it rides as nicely as a Buick but still handles well above average. I wanted to make the handling excel, but I was very nervous about ruining the comfortable ride quality. I'm happy to say - these springs are perfect for me! The inch that it lowered by convertible is an improvement without being obvious to the casual viewer, and while the ride stiffened up a little bit, it's still very good, and now handles like a Miata. Nosedive is cut in half, and cloverleafs are a thrill! If I had to quantify it, I'd say you give up 10% smoothness for 30% handling improvement. An excellent compromise in my book. I didn't have the nerve to do it myself, so it cost me $280 plus another $80 for the alignment. Even at a total of $600, it's worth it, but if you can do it yourself for $250, this is a performance bargain. Love to drive my Mustang (also have the Bama tune) and now I rarely miss my C6 Corvette!


    Year: 2011 Submodel: V6 Cupertino, CA

    Helpful (1)

  • 4/5

    Installation Time: Afternoon

    August 18, 2012

    Almost perfect, should be OEM spring.

    I didn't want a super aggressive drop on my Mustang, I just wanted to firm up some of the floatiness of the suspension. I debated adding stiffer shocks, camber bolts, adjustable panhard bars, and stronger shock mounts, and eventually just put the springs on by themselves. It worked out fine that way. I installed the Eibach Pro kit on a 2012 V6 Mustang coupe base model. Install wasn't too tough. The springs can all be changed without a spring compressor. Put stands under the engine cradle, and put a jack under the conrol arm and slowly lower it to take the tension off the spring. It's easier and safe if you go slowly. It took me about 3 hours to change out all the springs. The back was maybe 45 minutes, front 2 hours overall. Handling is firmed up by about a third, but the ride is still a little softer than I would've liked. I didn't want a race car ride at all, but I was expecting a little firmer handling than I got. It's overall a VERY easy daily driver, absolutely this is the spring Ford should have as stock. My only complaint is that this didn't lower the rear as much as it says it will. I took meticulous measurements and found only a 7/8" drop front and rear. It says in the description to expect a 1.2" drop on the rear of the V6. Nope, the rear still rides with a little too much gap. As for the axle, it shifted about 1/8" to the driver side. No biggie. Overall well worth it, but if I had to do it again I would have liked another 15% more spring rate and a little less fender gap. Its still an easy daily commuter car that could use a bit more control in aggressive cornering. I will post pics, its a Grabber blue V6.


    Year: 2012 Submodel: V6 Buford, GA

    Helpful (11)

    • Response from AmericanMuscle

      It's possible if you just installed the springs, that they still need time to settle to the estimated drop. Springs don't show the exact full drop immediately after installation. Hope this helps!

      Lisa , Customer Care

  • 5/5

    March 03, 2011

    2011 mustang v6

    I have always purchased form AM and nobody beats their service. This drop was great, installed withen a few hours looks and rides great. I posted two pictures one is before and the other is the after. mine its the sterling grey v6.

    Dustin Hamilton

    Year: 2011 Submodel: V6

    Helpful (10)

  • 5/5

    Installation Time: Afternoon

    April 03, 2014

    Great Upgrade!!!

    I had a professional shop install these springs for me which took a whole afternoon. I immediately noticed the 4x4 look was gone and my car sat level and in an aggressive manner. The handling capability wasn't very good compared to the way the stang drives now. It feels much better all around and handling has improved greatly. I definitely recommend these for every stang out there... it really is a night and day difference.


    Year: 2012 Submodel: V6 San Diego, CA, USA

    Helpful (2)

  • 5/5

    Installation Time: Afternoon

    December 01, 2012

    Great improvement

    Just purchased these springs and installed them. It took about 2 hours to complete both ends. I did not want a significant drop so I went with the Pro Kit. These take away that 4x4 look of stock and give you a perfect height. I was on the wall on choosing Pro Kit/Sportline, but I think I made the right choice. Awesome spring for the money and the ease of install was good.


    Year: 2013 Submodel: V6 Orlando, FL, USA

    Helpful (2)

  • 5/5

    Installation Time: Afternoon

    September 26, 2011

    Springs give the car a perfect stance

    The springs provide the perfect drop. Installation was relatively easy, however pay close attention to the strut mounts. I installed these with a friend in about 2.5hrs.


    Year: 2012 Submodel: GT

    Helpful (3)

  • 4/5

    Installation Time: Shop Install

    Installation Cost: 0-$100

    August 28, 2014

    Not Bad

    Just got these installed couple of days ago and they're not bad at all. The ride quality feels stock if not smoother w/ less body roll. Did not need camber bolts for alignment, it was quick an easy


    Year: 2013 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Full Day

    May 20, 2014

    Nice Drop

    As advertised. Nice all around drop but gap is still there especially in the back. Ride quality is actually less bouncy from stock track pack suspension but is a bit more harsh. Corners much better and reduced wheel spin on take off. I can actually use 1st and 2nd gear! Would definitely recommend and installed in about 6 hours.


    Year: 2014 Submodel: GT Houston, TX, USA

    Helpful (1)

  • 4/5

    Installation Time: Full Day

    February 03, 2014

    2014 Mustang gt Vert

    Installed these on my 2014 gt vert, all i can say is's a different car 100%...corners longer feels like a boat...minimal brake dive...ride maybe 10% rougher..but thats perfect...took me a bit longer to install as the spring compressors i had were junk...other than that the fronts went on easy...rears, i didnt remove the sub frame vert braces...just lowered the axle as far down to rest on the braces...then jacked up the opposite side until the car almost came off the jack stand, then wiggled out the opposite spring. ...super easy! you will need the adj panhard bar as mine was 3/4 inch to the drivers side. not sure on alinement yet...i want to let it settle abit before i do that. 250 spent...i just got the Koni Str.ts...will report on those once installed...


    Year: 2014 Submodel: GT ERIE PA

    Helpful (1)

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