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Eibach Pro-Kit Lowering Springs (03-04 Cobra)

Item 47505
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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

    MPN# 3594.140

    CA Residents: WARNING: Cancer and Reproductive Harm -

    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?

      Customer Photos (14) Submit Your Photo

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        Questions & Answers (6)

        5 Top Rated Questions

        Would lowering my car with just these springs be ok or are more parts necessary I have an 04 Cobra

        • The Eibach Pro-Kit Lowering Springs will not require any additional components for installation. We do recommend using aftermarket shocks and struts with lowered cars to provide the best handling and ride comfort.

        Helpful (0)

        When running longtubes will these scrape with the lowered stance?

        • You may experience minor scraping with long tube headers under circumstances, but it wouldn't be a huge issue with these springs.

        Helpful (0)

        I have an 03 Cobra Convertible. Installed these springs with the factory isolators. Will Caster Camber plates be necessary for the correct alignment?

        • We highly recommend getting an alignment done after installing the Eibach Pro-Kit Springs. If they are not able to get the car back to factory alignment, then you will need caster camber plates.

        Helpful (0)

        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)
        Post Your Question
        1 More Question
        would these fit on 20 inch staggered wheels? 20x8 in front and 20x10 on rear 1 answer

          Customer Reviews (16) Write a Review

          Overall Rating 5

          out of 5 stars

          Installation Time:Full Day

          Installation Cost:$250-$500

          • Handling Improvement 4.8 4.8
          • Ride Quality 4.6 4.6
          • Appearance 4.8 4.8
          • Bang For Your Buck 4.9 4.9

          • 5/5

            Installation Time: Afternoon

            July 21, 2019

            Eibach never disappoints and quick delivery

            eibach springs are durable and good price. Runs smooth. Ride height is really nice. Not to low. Definitely recommend this product


            Year: 2004 Submodel: Cobra

            Helpful (0)

          • 5/5

            Installation Time: Afternoon

            March 06, 2019

            ibach pro kit lowering springs 03-04 cobra

            love the way my 03 cobra convertable sits now plus improved ride quality would recomend buying


            Year: 2003 Submodel: Cobra

            Helpful (1)

          • 5/5

            Installation Time: Full Day

            December 11, 2018


            Great drop love the stance easy to install would recommend these for all 03-04 cobras!


            Year: 2003 Submodel: Cobra

            Helpful (5)

          • 5/5

            Installation Time: Shop Install

            April 18, 2018

            Great springs

            Made my Cobra look 100X better but doesn't sit right on the tires!


            Year: 2003 Submodel: Cobra

            Helpful (8)

          • 5/5

            Installation Time: Afternoon

            March 24, 2018

            Good Springs

            Perfect stance with these springs. I only used bottom factory Isolators all the way around and love the way it looks. I'm careful, but don't have a lot of issues scraping.


            Year: 2003 Submodel: Cobra

            Helpful (6)

          • 5/5

            Installation Time: Shop Install

            Installation Cost: $500-$1000

            November 01, 2017

            Eibach Pro-Kit Springs

            Give your car the stance, take away the ugly fender wheel space


            Year: 2003 Submodel: Cobra

            Helpful (7)

          • 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 (12)

          • 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 (10)

          • 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 (7)

          • 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 (9)

          • 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 (10)

          • 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 (10)

          • 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 (7)

          • 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 (12)

          • 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 (15)

          • 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 (14)

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