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Eibach Sportline Spring Kit (79-04 V8 Coupe; 99-04 V6 Convertible; Excluding 99-04 Cobra)

Market Price $294.30 You Save 10% ($29.43)
Our Price

$264.87

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  • Item 47812
  • MPN# 4.1035

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    Features, Video & Details

    • Extreme Lowering & Aggressive Stance
    • Race Car Like Handling
    • Lower Center of Gravity
    • Progressive Spring Rate
    • Estimated Drop: Front - 1.7" Rear - 1.5"
    • Fits 79-04 V8 Coupes & 99-04 V6 Convertible, Excludes IRS
    • Clears Stock and Aftermarket Wheels & Tires.

    Review & Installation Video

    Review & Install Video

    The Eibach Sportline lowering springs are going to be a good option for the owners out there who are looking for a progressive-rate spring that'll give an aggressive drop and aggressive handling. The spring is perfect for those owners out there that are willing to sacrifice some of the nicer amenities of a soft ride quality in order to gain one of the biggest drops from a lowering spring. These springs will lower the car 1.7 inches in the front and 1.5 in the rear. As far as the install goes, you're looking at a two out of three wrenches on the difficulty meter and you can plan on spending a half a day to get the install done. The Sportline springs are a very popular aftermarket spring. Not just for these cars, but across multiple generations, because of the amount of drop that they offer. Right now, this kit is going to be your go-to choice if you're looking to drop the car as low as possible on a lowering spring. Even though these offer a lot of drop, the Sportlines feature a progressive or dual-rate spring, which is always a great choice for a streetcar. Because it'll be relatively comfortable in cruising, but progressively get firmer when you start pushing the car and that's reflected in the spring rates. Some of the benefits of using a progressive-rate spring like this include improved roll control over a traditional linear spring, especially when paired with a set of matched sway bars, like the Eibach sway bars. Ride quality is something that's going to be subjective. But I can at least give you an idea of what to expect here. Taking into consideration the fact that these offer a good amount of drop and that they are progressive, you can definitely expect a firmer ride quality. You are going to notice more bumps in the road and have more of what I call a "sporty" ride quality. But it isn't a bad ride quality at all. Another thing that I wanted to bring up here is caster camber plates. Caster camber plates are always going to be a good idea when you lower your car. But they don't really become necessary until you hit one and a half inches or lower. In this case, I'd say that a set of CC plates are needed if you don't already have a set, since these offer a big drop. That way, you know that you'll be able to get your car limit back in spec after the install. Speaking of extra things here, it's also always a good idea to pick up some new spring isolators, especially if they have a lot of miles on them. These springs are still going to allow the car to clear the stock wheels and tires. But they'll also clear the preconfigured wheel and tire combo kits that we offer here on the site for the specific generations, so you won't have to worry about rubbing. I do want to specify that these will fit the '79 to '04 V8 coupes and the '99 to '04 V6 convertible Mustangs. They will not fit the '99 to '04 Cobras due to the IRS. When it comes to price, you can expect to pay just north of the $250 mark for these springs. If this price sounds a bit high for you, you can always shop around for another brand and save a little bit of money. SR Performance is very budget-friendly, and Vogtland, ST Suspension, and Ford Performance all have similar offerings for a touch less than these springs. As far as the install goes, this isn't a difficult install, but it does involve a lot of work. I'm going to call this one a two out of three wrenches on the difficulty meter. You're looking at spending a half a day in the garage, and you'll need an assortment of wrenches and sockets, and of course a spring compressor, and a jack and jack stands if you don't have access to a lift. This is all straightforward and it's something that most people can handle themselves. You're going to have to break down everything like your calipers and rotors, and get your old shock and strut, and spring setup out. Luckily, since this kit is a direct replacement, it makes the install easier. Your springs and struts install separately. So you're looking at needing to slide the front struts into place and getting the top nuts back on, as well as getting the spring seated and in place. The rear is a little bit different, but you're still looking at needing to remove your factory component. After the springs are installed, the shocks can be installed and those go in the same way the factory ones came out, and that's pretty much it. Keep in mind that after tweaking this much of your car's suspension, you're going to need an alignment to make sure everything still looks good and is in spec. That's going to do it for my review of the Eibach Sportline spring kit for the '79 to '04 V8 coupe and the '99 to '04 V6 convertible. But you can check these out more online right here, at americanmuscle.com.

    Better Handling. Give your Mustang the sportscar type handling it deserves with an Eibach Sportline Spring Kit. This lowering spring kit lowers your Mustang's ride and center of gravity even more than the legendary Eibach Pro-Kit, for maximum improvement in acceleration, cornering, and braking performance. A set of Eibach Sportline springs are the no-comprimise choice for the enthuisast that still needs a streetable car.

    Maximum Lowering. Eibach's Sportline Spring Kits are designed to deliver the lowest possible drop for a racecar like look and handling while still maintaining exceptional ride quality.

    Progressive Design. Eibach uses their proprietary progressive spring design to create the Sportline springs. The result is a spring that delivers the maximum lowering and aggressive stance a true enthusiast demands, without 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 factory 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 Eibach Sportline springs is designed for 1979 to 2004 V8 Mustang Coupes and the 1999 to 2004 V6 Convertible Mustangs. Will not fit 1999 to 2004 SVT Cobra's with Independent Rear Suspension (IRS). Sold as a set of 4.

    Fitment: 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 Details

    What's in the Box
    • (4) Lowering Springs
    • (1) Snubber
    Installation Info
    Tech Specs

    Specifications:

    • 1979-1993 V8 Coupe:
      • Lowers Front: 1.7"
      • Lowers Rear: 1.5"

    • 1994-2004 V8 Coupe:
      • Lowers Front: 2.0"
      • Lowers Rear: 1.8"

    • 1999-2004 V6 Convertible:
      • Lowers Front: 1.7"
      • Lowers Rear: 1.5"


    Springs Specifications
    Spring Rate: Front: 550 lb/in.
    Rear: 251 lb/in.
    Usage: Street/Track
    Year: 1979-2004 Model: 79-93 V8 Hardtop,
    94-04 V8 Hardtop
    99-04 V6 Convertible
    Progressive or Standard: Progressive Estimated Drop:

    1.7"F / 1.5" R
    2.0 "F / 1.8"R
    1.7"F/ 1.5"R

    Will it fit my Mustang?
    • Bullitt - 01
    • Cobra - 93, 94, 95, 96, 97, 98
    • Cobra R - 93, 95
    • GT - 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04
    • LX - 87, 88, 89, 90, 91, 92, 93
    • Mach 1 - 03, 04
    • Other - 79, 80, 81, 82, 83, 84, 85, 86
    • V6 - 99, 00, 01, 02, 03, 04

    Does not fit 1999-2004 SVT Cobra's with Independent Rear Suspension (IRS)

    People Who Bought This Item Also Bought

    Most Helpful Reviews

    5/5
    Sportline springs

    I love these springs. The ride and stance is great. You will need to take bumps and inclines with caution!!!!

    Helpful (17)

    5/5
    Simply....awesome.

    These took me and a buddy 2.5 hours to install this morning. The pictures I have submitted are taken immediately after install, so the springs haven't settled yet but you can notice the definitive drop ...

    Read More
    Helpful (15)

    Overall Rating 4.8 out of 5 stars
    Read All 80 Reviews

    Customer Photos (100+) Submit Your Photo

    View All 100+ Photos

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    37 Questions / 5 Answers

    Ask a Question

    I have a 2000 gt 275 in front 315 in rear will these work thank u

    ChristopherS

    • The Eibach Sportline Spring Kit will work with those tire sizes as long as the wheel offset is correct. All of our Mustang wheels will allow this to work, as well as any aftermarket wheels sharing the same offset for that given size.

      Rob D

    Helpful (1)

    I am planning on putting 20" Rovos on my 2002 GT. Will these springs be too low?

    Jackson

    • The Eibach Sportline Spring Kit will fit 20 inch wheels. However fitment will depend on the tire size you add as well.

      AM MikeW

    Helpful (1)

    Would I need to change out any other stock parts (control arms, quad shocks, etc) if I just replace my stock springs with these Sport lines?

    StephenM

    • This Eibach Sportline Spring Kit will not require any additional components for installation, however, we would highly recommend the SR Performance Polyurethane Spring Isolators for the front and rear, items 56054/56055. https://www.americanmuscle.com/bbk-front-isolators-7904.html https://www.americanmuscle.com/bbk-rear-isolators-7904.html

      AMJEFF

    Helpful (0)

    Will this fit in my 1998 v6 or you guys offer for my 98 that lower 1.7 in at from and 1.5 in at rear

    ArnoldC

    I got a 1989 convertible will they fit with any kind of problems?

    JorgeG

    • The Eibach Sportline Spring Kit will not fit an 89 Convertible.

      VincentV

    Helpful (0)

    Will this work on a 2004 gt convertible?

    ChristianM

    • Yes, this will also work and fit on a 2004 mustang GT convertible.

      AMjordan

    Helpful (0)

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    Customer Reviews (80) Write a Review

    Overall Rating 4.8

    out of 5 stars

    Installation Time:Full Day

    Installation Cost:$100-$250

    • Handling Improvement 4.785714 4.8
    • Ride Quality 4.585714 4.6
    • Appearance 4.871428 4.9
    • Bang For Your Buck 4.728571 4.7



    • 5/5

      March 13, 2011

      Sportline springs

      I love these springs. The ride and stance is great. You will need to take bumps and inclines with caution!!!!

      Rob M

      Year: 1999 Submodel: GT

      Helpful (17)

    • 5/5

      Installation Time: Afternoon

      November 18, 2012

      Simply....awesome.

      These took me and a buddy 2.5 hours to install this morning. The pictures I have submitted are taken immediately after install, so the springs haven't settled yet but you can notice the definitive drop in ride height. I absolutely LOVE it. I'm expecting about another 1/2" drop up front, and maybe 1/4" rear drop over time as the springs settle in. The stance these springs provide is so very appealing to the eyes. I just can't get over the difference these springs make after install, going from the 4x4 look to the aggressive racy look. The ride quality is exactly what I expected. You feel bumps in the road more, but unlike a lot of people, I enjoy the racy feel of the lowered vehicle more than a ride where you don't feel a thing. If I wanted the ride feel of a sedan, I would have bought a Cadillac, not a Mustang. The handling is excellent as well. A lot less(if any) body roll through corners and freeway on/off ramps. I just can't get over the difference these made. 100% absolutely love these springs, the look, the handling and the feel the car has when driving down the road.

      SolemnSinner

      Year: 2001 Submodel: GT Las Vegas, NV

      Helpful (15)

    • 5/5

      April 27, 2011

      Nice..

      Great stance! I really like the ways these make my car look lower than the profit but not too low! I would recommend these to any Mustang owner!

      Josh

      Year: 1998 Submodel: GT

      Helpful (7)

    • 5/5

      Installation Time: Afternoon

      December 07, 2011

      These springs are awesome!!!!!!!!!!!

      The Eibach Springs were an excellent upgrade for my stang. it looks great and handles like a dream. other than feeling just about every bump in the road. these spring are a great choice to up the looks and handling on your car. it took me an hour and a half to do the install but i also had a lift. the install was pretty self explanitory. i do recommend new sping isolators when doin the swap i put polyurethane ones in from PROTHANE and i love it. well worth it!!!!!!!!!!!!

      Rangerjesse89

      Year: 1999 Submodel: GT Fortb Collins, CO

      Helpful (6)

    • 5/5

      June 30, 2011

      eibach sportline springs

      They made my car look mean, great stance!

      eric d

      Year: 1998 Submodel: GT

      Helpful (6)

    • 4/5

      August 19, 2011

      Nice drop

      These springs provide a substantial drop but more in the front. I previously had H&R sports and now with Eibach sportlines, the back is the same (1.5") and the front is closer to 2" (.5" more than H&R) Overall a good spring but maybe too low in the front as I now worry about hitting my 2 extra quart ATF pan on dips and bumps.

      Ken E

      Year: 2002 Submodel: GT

      Helpful (5)

    • 5/5

      June 21, 2011

      Sportlines

      These springs make for a great look. They also seem to help a the track. No more nose in the air, like with stock.

      Natas LeD

      Year: 2004 Submodel: GT

      Helpful (4)

    • 5/5

      Installation Time: Afternoon

      May 28, 2017

      Great product!!!

      Love these lowering springs took me 4 hours to install, noticed the difference immediately once they were one, less body roll and looks great!! Glad I got these, it was worth every penny!!!! Thanks AM!!!

      Falcon75

      Year: 2004 Submodel: V6

      Helpful (3)

    • 5/5

      Installation Time: Afternoon

      May 01, 2017

      Eibach sportline

      These springs went on great and look amazing, went together no problem.

      PeterM

      Year: 2000 Submodel: GT

      Helpful (3)

    • 5/5

      Installation Time: Afternoon

      March 08, 2017

      Stance

      Easy install along with struts and shocks. LI've the drop I got on my Mach 1. About 1.4 inches all around.

      MichaelM

      Year: 2003 Submodel: Mach 1

      Helpful (3)

    • 5/5

      September 13, 2016

      04 Mach 1

      Easy Install......Car Looks Great....Took about 2 hrs. with the help of a friend. This is a great product, I Give It 5 Stars.

      BikerBill

      Year: 2004 Submodel: Mach 1

      Helpful (3)

    • 5/5

      July 30, 2016

      Perfect drop do your research

      I kept bouncing back and forth between the sportline and h r super sports, so glad I chose these!!!! The worries about running with or without isolators shouldn't be a concern if you do your research and know what drop you want. Currently im running no isolators in front and only the top isolators in the rear, once it settles I assume another 1/2" in the front but over all no noises or issues! Love eibach and their product.

      Vic302

      Year: 2004 Submodel: Mach 1

      Helpful (3)

    • 5/5

      July 11, 2016

      Perfect fit..

      Replace my Brocken springs from my SALEEN S281 SC the springs fit perfect very happy with them

      Saleen

      Year: 2001 Submodel: Other

      Helpful (3)

    • 5/5

      Installation Time: Afternoon

      June 10, 2016

      Just Wow !

      I installed these because I noticed a crack on my spring, but when I finally removed the old oem ones they broken at the bottom on both sides and to make it worst the polyurethane mounts were melted on to the lower control arm. So I advise buying the new polyurethane mounts. Just in case also bring a flat head screw driver, pressure pliers and a hammer To remove those melted parts. As for the new springs it was night and day. I paired them with the eibach shocks and struts and took a 25mph exit at 55mph hugging the yellow line ! Thanks AM !

      Vital

      Year: 1999 Submodel: V6

      Helpful (3)

    • 5/5

      Installation Time: Afternoon

      June 09, 2017

      Look great

      They look great, not as low as I want still but definitely better than the 4x4 stance of the stock ones lol. The only reason my ride quality isnt the best is becaue its still on stock shocks but other than that these springs are a must

      Morgan

      Year: 1998 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $250-$500

      June 08, 2017

      Spring kit

      I had my sportline spring kit installed a couple days ago. The sport line spring kit lowered my car about an inch and it looks great now as well as drives better.

      BarbaraC

      Year: 1999 Submodel: V6

      Helpful (2)

    • 5/5

      Installation Time: Afternoon

      May 22, 2017

      Worth it

      Good springs for a good price. Lowered the car nicely and the ride is still fine. Probably got about a 1.25-1.5" drop all around.

      HeathM

      Year: 2003 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Afternoon

      May 08, 2017

      Great stance and Perfect height!!

      I bought these springs for my 2002 gt convertible and it immediately changed the look and feel of the ride! It will take a few days to break but it's totally worth the wait!! A must buy for the look depending on your application no scrapping even with a chin spoiler!

      01Cobra

      Year: 2002 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Afternoon

      April 04, 2017

      03 mach 1

      This is my second set of sportlines love the product definitely more bumpy down the road but you have to sacrifice for a better stance and handling.

      DavidJ

      Year: 2003 Submodel: Mach 1

      Helpful (2)

    • 5/5

      Installation Time: Afternoon

      January 05, 2017

      Eibach sport line springs

      I love these springs, perfect drop for me.easy to install.

      Dawg

      Year: 1990 Submodel: GT

      Helpful (2)

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