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

65 Reviews
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  • Item #47803
  • MPN #35125.14
  • Market Price $281.99
  • You Save 13% ($37.00)
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Product Videos Customer Photos
  • 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
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.

Application. This set of four Eibach Pro Springs are designed for use on the 2011-2014 GT, V6 and BOSS Mustangs.

Mustang 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
  • Boss 302 - 12, 13
  • V6 - 11, 12, 13, 14
  • GT - 11, 12, 13, 14

Most Helpful Reviews View All

Overall Rating 4.8/5 Write a Review
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

Read More
Helpful (11) (0)

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.

Read More
Helpful (10) (4)


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 View Full Transcript

Customer Photos (69) View All

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Q & A (11 Questions, 14 Answers) Ask a Question

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

CoreyM Year: 2012 Model: GT

Question Resolved
Good Question (1) (0)
  • 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?

    Helpful (7) (3)

    Best Answer

    mustangcobras Year: 2012 Model: GT

    Top 1000 Contributor

Show 5 more answers

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

Chris3103 Year: 2011 Model: V6

Question Resolved
Good Question (2) (0)
  • 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.

    Helpful (2) (0)

    Best Answer

    Shrapnel Year: 2012 Model: GT

    Top 10 Contributor

Show 4 more answers

Paired with FRPP shock/struts? Is there any reason that these springs can't be paired with FRPP shocks/struts on a 2011 V6? I was looking at the FRPP lowering springs but like the idea of the lesser drop with these springs.

LandToSea Year: 2011 Model: V6

Question Resolved
Good Question (0) (0)
  • Pro-Kit springs work well with FRPP shocks/struts compared to other spring sets with more lowering so you don’t over stress FRPP set-up. If you go pass 1.0” I would recommend changing out FRPP to customized Eibach shocks/struts designed to handle lowering stress loads compression without risking shocks/struts blowouts resulting from excessive wear. Also V6 lighter frontend weight distribution is less likely to over compress FRPP struts compared to heaver V8, which will allow normal strut life. Eibach camber bolts may be necessary for realignment.

    Helpful (0) (0)

    Shrapnel Year: 2012 Model: GT

    Top 10 Contributor

Show 2 more answers

Reviews (65) Write a Review

  • 5 Stars .86 86%
  • 4 Stars .12 12%
  • 3 Stars .02 2%
  • 2 Stars 0 0%
  • 1 Stars 0 0%

out of 5 stars

64 Customers Recommend this Product

Installation Time:Full Day

Installation Cost:$100-$250

  • Handling Improvement: 4.746032 4.7/5
  • Ride Quality: 4.603175 4.6/5
  • Appearance: 4.793651 4.8/5
  • Bang For Your Buck: 4.650794 4.7/5
Filter By Sort By
  • 4/5

    Almost perfect, should be OEM spring.

    August 18, 2012

    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 Model: V6 Driving Style: Daily Driver 'Stangs I have owned: 2 Buford, GA

    Helpful (11) (0)

    • 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

    2011 mustang v6

    March 03, 2011

    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 Model: V6 Driving Style: Daily Driver

    Helpful (10) (4)

  • 5/5

    Great Upgrade!!!

    April 03, 2014

    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 Model: V6 Driving Style: Street / Strip 'Stangs I have owned: 3 San Diego, CA, USA

    Helpful (2) (0)

  • 5/5

    Great improvement

    December 01, 2012

    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 Model: V6 Driving Style: Daily Driver 'Stangs I have owned: 1 Orlando, FL, USA

    Helpful (2) (0)

  • 5/5

    Springs give the car a perfect stance

    September 26, 2011

    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 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 5+

    Helpful (3) (1)

  • 5/5

    Nice Drop

    May 20, 2014

    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 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 1 Houston, TX, USA

    Helpful (1) (0)

  • 4/5

    2014 Mustang gt Vert

    February 03, 2014

    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 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 1 ERIE PA

    Helpful (1) (0)

  • 4/5

    Nice drop, better handling, stiffer ride.

    December 26, 2013

    Provides the perfect stance-received a lot of compliments on the improved look. Not a slammed look but takes away the tire gap. Handling definitely better, much less nose dive on braking and less squatting on acceleration. Ride is a little stiffer. Definitely must buy a pan hard bar but nothing else is immediately needed. Shocks/struts eventually and maybe that'll help with the stiffer ride. This was my second mod and would recommend to anyone


    Year: 2014 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 1 Woodstock, GA, USA

    Helpful (1) (0)

  • 4/5

    Pretty much as advertised

    July 07, 2013

    I'm pleased with this install. It dropped my car 1" in front and 1-3/8" in back. Ride is firmer. I plan on upgrading to adjustable shocks and struts in the future. No bump steer, but the car does want to track uneven surfaces slightly more, especially under braking.


    Year: 2014 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 2 DFW

    Helpful (1) (0)

  • 5/5

    The "Low Down".

    September 01, 2012

    Had these springs installed on my 2013 Mustang V6 Auto, MCA Edition. Just the drop it needed. Excellent ride and handling qualities. Perfect stance for a daily driver. My first mod beside window tinting.


    Year: 2013 Model: V6 Driving Style: Daily Driver 'Stangs I have owned: 2 Anaheim, CA

    Helpful (2) (1)

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