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

Item 47505
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      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation


      • 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

      Eibach 3594.140

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (16)

      Write a Review

      Ratings Summary

      5.0 out of 5 overall rating from 16 customers

      Installation Time: Full Day

      Installation Cost: $250-$500

      • July 21, 2019

        5 2004 Cobra - AntonioS Installation Time: Afternoon

        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

        Helpful (3)
      • March 06, 2019

        5 2003 Cobra - patrickc Installation Time: Afternoon

        ibach pro kit lowering springs 03-04 cobra

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

        Helpful (4)
      • December 11, 2018

        5 2003 Cobra - AlexG Installation Time: Full Day


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

        Helpful (8)
      • April 18, 2018

        5 2003 Cobra - DaveB Installation Time: Shop Install

        Great springs

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

        Helpful (11)
      • March 24, 2018

        5 2003 Cobra - Tiff Installation Time: Afternoon

        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.

        Helpful (9)
      • November 01, 2017

        5 2003 Cobra - Tracy Installation Time: Shop Install Installation Cost: $500-$1000

        Eibach Pro-Kit Springs

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

        Helpful (11)
      • September 17, 2016

        5 2003 Cobra - Sean

        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.

        Helpful (16)
      • August 29, 2016

        5 2004 Cobra - Evant

        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.

        Helpful (14)
      • November 22, 2013

        5 2003 Cobra - Rayzer Installation Time: Shop Install Installation Cost: $100-$250

        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

        Helpful (10)
      • April 20, 2013

        5 2003 Cobra - damien256 Installation Time: Less than 1 Hour

        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!

        Helpful (12)

      Questions & Answers (6 answers)

      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

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (4) Lowering Springs

      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

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