2003-04 Mustang Eibach Pro-Kit Lowering Spring Kit Cobra by Eibach

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Eibach Mustang Pro-Kit Lowering Spring Kit (03-04) Cobra 3594.140

In the market for lowering you 2003-2004 Cobra Mustang? Look no further! The Mustang Eibach Pro-Kit is the perfect kit!

Item #EIB-3594140
MPN# 3594.140

Your Price: $285.12

Market Price:$316.80
You Save 10.00 % ($31.68)

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  • Smoother Ride over Specific Rate Springs
  • Improve handling
  • Better looks with aftermarket wheels
  • Firmer ride


  • Lowers your Mustang approx 1.4"-1.5"
  • Black Finish
  • Front and rear Springs 2003-04 Cobra IRS
  • Coupe or Convertible

What's in the Box

  • Front pair Springs
  • Rear pair Springs
  • Instructions
  • Decal

Made in the USA

Product Description

This Mustang Cobra Eibach Pro-Kit lowering springs provide a 1.4" front & rear drop on coupes & 1.5" front & rear drop on convertibles.


- #1 Choice of Automotive Enthusiasts Worldwide
- High Performance Handling
- Lower Center of Gravity
- Excellent Ride Quality
- Part of the Eibach "Pro-System"
- Million Mile Warranty
- ISO 9001 and QS 9000 Quality Approved

Huge fender-well gap inherent from the factory or the popular installation of performance wheels and tires gives a vehicle a "lifted" look. The Pro-Kit is the perfect addition to any vehicle, lowering the fender gap and giving your ride a more attractive, sportier stance.

By lowering the car's center of gravity, our Pro-Kit reduces squat during acceleration, body roll in corners and excessive nose-dive under braking. When combined with Plus 1 or Plus 2 wheels and tires, the Eibach Pro-Kit is the finishing ingredient to a winning recipe for performance.

Every Eibach Pro-Kit is designed and tested by a suspension engineer and performance driving professional - to offer aggressive good looks and high performance handling - the best of both worlds without compromising safety or ride quality. By using our proprietary, progressive spring design, our Pro-Kit provides the ultimate balance that will take your passion for driving to a whole new level.

Eibach Warranty - Click Here

Customer Photos (3)

Product Reviews (3)

out of 5 stars
4.5 stars
3 reviews
5 stars    2
4 stars    1
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3 of 3 REVIEWS
3 of 3 REVIEWS

5 Stars   Choose the # of isolaters wisely!
By on 4/9/2014
Image uploaded by charles b. First time lowering a mustang, and ive had them for years.
Cut springs on my mach1 and it was nasty...Went the right route and bought these for my 04 Cobra. Since I am a badass I put no isolators in.. big mistake lol.

My tips:
-If you have a Vert the K member brace underneath is like 3-4 inches from the ground with Zero isolators in the front and as shown in my pic. The wheel will actually rub/bounce on the Wheel well liner if given the chance.
-I put one stock iso in the front, one in the back. This enables me to get over 50% of the speed bumps in town. before my chances where at 25% so keep this in mind. I'm willing to bet the drop is still enjoyable with 2 isolators +lowering springs.
-No spring compressors necessary. take strut nut off and pull out from fender. find some type of pry tool and it comes out. putting it back in is a little more fun but doable.

Yes, I would recommend this item to a friend!

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5 Stars   Perfect look and stiffness
By on 8/3/2016
Image uploaded by Omar M. Bought these for my 03 cobra and they feel and look very nice

Yes, I would recommend this item to a friend!

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4 Stars   Eibach all day
By on 8/11/2016
Image uploaded by stuart c. I've always been a fan of any of Eibachs products. I always use Eibachs lowering Springs and sway bars and that's it. My spring install was simple and fast on my 03 Terminator. Left all ISO's in for now. The springs have only 5 miles on them so they haven't settled yet. There is approximately a two finger measurement gap from tire to fender about 1". After settlement there will be roughly just room for one finger .5". The springs ride smooth with minimal bounce and combined with Eibach's huge upgraded sway bars my monster 560 whp Terminator drives like a race car.

Yes, I would recommend this item to a friend!

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Vehicle Applications

Ford Mustang - 2003 (03) - 2004 (04)

About This Brand

Eibach - "The Will to Win"
Eibach makes the finest performance suspension products in the world for your Mustang or Ford Lightning. When other suspension components sag, wear out, or create sloppy handling or a bone-crushing ride, top street tuners—like top race teams, from F1 to WRC, from Le Mans to NASCAR—inevitably turn to Eibach.

Eibach integrates the exact same technology in their street springs as they do in their legendary race springs. Eibach uses the world´s finest Hi-Ten spring steel, produced to exceedingly precise tolerances. Eibach uses world-renowned German CNC coilers, as well as many unique machines engineered and built specifically by Eibach—simply state-of-the-art technology, in every step of the manufacturing process. Shop LatemodelRestoration.com for your Eibach Mustang lowering springs, suspension kits, and sway bars.

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