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Eibach Pro-Kit Springs (03-04 Cobra)

Market Price $316.80 You Save 10% ($31.68)
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  • Item 47505
  • MPN# 3594.140

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Features & Details

  • Classic Muscular Stance
  • Improves Handling
  • Lowers Center of Gravity
  • Progressive Spring Rate
  • Estimated Drop: Front - 1.0”, Rear - 1.4”
  • Fits 2003-2004 SVT Cobra Mustangs
  • Clears Stock and Aftermarket Wheels & Tires.
Performance Handling. These Eibach Pro-Kit Progressive Rate Springs will lower your Mustang's center of gravity, reducing body roll in the turns, squat during acceleration, and excessive nose-dive under hard braking. A set of Eibach Springs are great for daily driving, street, and even track use.

Classic Muscular Stance. Not only does a set of Eibach Pro Kit Springs improve the handling performance of your Mustang, but they also improve it's overall appearance by lowering the ride height to eliminate the huge tire to fender gap, for a classic muscular stance.
  • Lowers 2003-2004 Coupe: Front - 1.0", Rear - 1.4"
  • Lowers 2003-2004 Convertible: Front - 1.0", Rear - 1.4"

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.

Recommended Upgrade. When installing new springs you should also replace your old worn out rubber Spring Isolators with a new set of Polyurethane Spring Isolators, see drop down option above.

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 specifically designed for use on both the coupe and convertible 2003 to 2004 SVT Cobra with independent rear suspension (IRS).

Fitment: 2003 2004 Details

What's in the Box
  • (4) Lowering Springs
Installation Info
Tech Specs
Springs Specifications
Spring Rate: Front: 456-570 lb/in.
Rear: 536-821 lb/in.
Usage: Street
Year: 2003-2004 Model: 03-04 SVT Cobra Coupe
03-04 SVT Cobra Convert
Progressive or Standard: Progressive Estimated Drop:

1.0"F / 1.4" R
1.0"F / 1.4" R

Will it fit my Mustang?
  • Cobra - 03, 04

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Most Helpful Reviews

Great ride/ lower than I thought.

The install of the Eibach pro-kit was very straight forward, if you follow the instructions you will not have any issues at all. The car did drop more than I had thought, however, it is a spot on "stance" ...

Read More
Helpful (4)

Lowering Springs

The stance of my cobra looks a whole lot meaner and the ride is also comfortable. Highly recommend anyone who desires a nice clean look with a comfort feel when driving. The cobra seems to handle better ...

Read More
Helpful (4)

Overall Rating 5 out of 5 stars
Read All 10 Reviews

Customer Photos (11) Submit Your Photo

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4 Questions / 3 Answers

Ask a Question

What is the unconpressed height of these springs and the original 2003 cobra convertible springs? I bought a used cobra at an auction and wanted to see if these lowering springs are already installed.


Will these fit 01 cobra buy chance ?


  • These will not fit a 2001 Cobra, we do have specific ones for a 2001 Cobra found here item #47504.


Helpful (0)

1st Question: In reviewing my selection for either a combination of Eibach Springs (#47505) w/Koni Sport Shock Strut Kit (#37815) or the Bilstein Pro-Kit (#389143), is there a preference to go with the adjustable Koni? 2nd Question: On the submitted customer photos for Eiback, there's a photo of a Grey Cobra w/black racing stripes submitted by Enrique Diaz dated 08/01/12 (plate number H 12 3268). Who is the manufacturer of the rear spoiler on this Cobra? That's the style that I am looking for. Your help is appreciated.


  • For your 1st question, if you want to talk to us about comparing and contrasting the similarities and differences for the setups, please call us or email us! for your 2nd question, the manufacturer for the spoiler in question is Saleen, the spoiler is the Saleen S281 1-Piece Rear Spoiler (01-04 GT, V6, Cobra) item #390122 (


Helpful (0)

would these fit on 20 inch staggered wheels? 20x8 in front and 20x10 on rear


  • Yeah I have the sportline springs which sit a lil lower than the pro lines and I have 20" foose nitrous wheels on it


Helpful (0)

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Customer Reviews (10) Write a Review

Overall Rating 5.0

out of 5 stars

Installation Time:Full Day

Installation Cost:$100-$250

  • Handling Improvement 4.8 4.8
  • Ride Quality 4.4 4.4
  • Appearance 4.8 4.8
  • Bang For Your Buck 4.8 4.8

  • 5/5

    March 31, 2011

    Great ride/ lower than I thought.

    The install of the Eibach pro-kit was very straight forward, if you follow the instructions you will not have any issues at all. The car did drop more than I had thought, however, it is a spot on "stance" and looks great! If you have a vert watch the brace that sits lowest on your car, this is the lowest point and it is very low.


    Year: 2003 Submodel: Cobra

    Helpful (4)

  • 5/5

    September 26, 2009

    Lowering Springs

    The stance of my cobra looks a whole lot meaner and the ride is also comfortable. Highly recommend anyone who desires a nice clean look with a comfort feel when driving. The cobra seems to handle better too.


    Helpful (4)

  • 5/5

    Installation Time: Less than 1 Hour

    April 20, 2013

    Eibach Pro Springs

    Awesome product, easy to install and gives the car just the look I was after. The ride is so much better than stock with these springs installed and the car responds quicker to very little steering input. Thanks Eibach Engineers!


    Year: 2003 Submodel: Cobra Connecticut, USA

    Helpful (2)

  • 5/5

    Installation Time: Afternoon

    March 10, 2013

    lowered it at just the perfect hieght

    2003 cobra looks and rides much nicer and was an easy install


    Year: 2003 Submodel: Cobra Nova Scotia, Canada

    Helpful (2)

  • 5/5

    Installation Time: Afternoon

    April 02, 2012

    Awesome looks and easy install

    I bought the Eibach Pro-Kit and installed it tonight. Anyone who buys this kit needs to follow the instructions for installing the H&R race springs because it is spot on. I have a shop, but not a hoist, I used floor jacks just like the instructions said. It took exactly 2 hours and 11 minutes. That included re-installing the wheels and roughly 4 beers. Right after install I measured a drop of 3/4" in the front and 1 1/4" in the rear although it will likely settle some more. Anyone looking to lower their Cobra should consider these springs.


    Year: 2003 Submodel: Cobra Ontario

    Helpful (2)

  • 5/5

    September 17, 2016

    Eibach Pro-kit springs

    I debated a long time if I wanted to lower my car or not and I'm glad I finally did. It looks and handels so much better.


    Year: 2003 Submodel: Cobra

    Helpful (1)

  • 5/5

    August 29, 2016

    aggressive stance

    i was worried that it would be to low and i would loose the ride quality but i was completely wrong. i love them.


    Year: 2004 Submodel: Cobra

    Helpful (1)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $100-$250

    November 22, 2013

    Eibach pro springs!

    The springs are amazing. It didn't give the slammed look but definitely gave it a more aggressive look. Handling is awesome and the ride couldn't be better. Recently took my bottom isolators out of front and rear to drop it a little more. Doing this generally gives it around 1/4 drop


    Year: 2003 Submodel: Cobra Ragland, AL, USA

    Helpful (1)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $100-$250

    May 26, 2012

    Eibach springs

    Excellent product better than stock.Improves handling and gives a mustang nice stang.I would deff.recommend these to who ever stilll running stock springs.


    Year: 2004 Submodel: Cobra Coram, NY, USA

    Helpful (1)

  • 5/5

    Installation Time: Full Day

    April 27, 2012


    This kit goes on really easily and the springs fit nearly perfectly in the factory position on the front and rear. The front took a couple of hours not rushing the job. The rear on the IRS looks complicated, but a total of 6 bolts and a floor jack under the differential and the springs will literally fall out. Assistance on the reinstallation would be a plus, but if you carefully jack up the IRS assembly to just the right clearance the springs will stay in place and you can jack up the IRS to re align the bolts and in less than an hour the rear will be done. The ride is very solid and the lowered look is just about perfect. The ride is very nice for daily street driving and I cant wait to run it on the 3.7 mile course in Sebring for a track day for a real test. I added the D spec Tokico shocks and the Eibach anti roll bar kit too, a nice combination and I highly recommend it !


    Year: 2003 Submodel: Cobra Winter Haven, FL, USA

    Helpful (1)

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