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SR Performance Progressive Lowering Springs - Coupe (79-04 All, Excluding 99-04 Cobra)

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  • Item 53150

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    Features, Video & Details

    • Sleek Muscle Car Stance
    • Lowers Center of Gravity for Improved Handling
    • Progressive Spring Rate
    • Blue Finish
    • Estimated Drop: Front - 1.5", Rear - 1.5"
    • Clears Stock and Aftermarket Wheels & Tires
    • Professional Installation Recommended
    • Sold as a Set of 4 Springs
    • Fits 1979-2004 Mustang Coupes, Excludes IRS Equipped Cobras

    Review & Installation Video

    Review & Install Video

    I’m Justin from AmericanMuscle.com, and this is our handling bolt-on build-up for all ’99-‘04 Mustang GTs. The goal with this build is pretty simple, we’re looking to take some basic suspension components, install them on our 2000 GT here, in an effort to make it handle a lot better than it does now in stock form. Now, individually, installed each of these parts will make a slight difference in your car’s handling. However, when installed together, like we’re going to do today, they should make a substantial difference in our cars’ handling and should make our GT handle like it’s on rails. First up on the list to install is this black strut tower brace that we have laid into place, just so we can see how it’s going to sit. Now this is a very popular first step for making your car handle a little bit better, and it’s going to be pretty easy on your wallet as well. Now basically, this is going to firm up the front end and reduce chassis flex and body roll. I have to admit, that black powder coated finish is going to look pretty cool under the hood as well. The next mod we’re going to go with for our handling pack is a set of these QA1 Caster Camber Plates. These are going to be very valuable for getting our GT’s alignment back in spec after we lower the car. A properly set up alignment will not only help your cars handling, but it’s also going to save your tires from premature wear. Speaking of lowering the car, what suspension build would be complete without a set of lowering springs. We’re going to install a set of these SR Performance lowering springs which will lower our GT roughly an inch and a half or so on all four corners. Not only will this help our ride handle a lot better thanks to that lower center of gravity, but it’s also going to help our appearance as well by getting rid of that ugly wheel gap. Last and certainly not least are these front and rear sway bars from Eibach, sway bars are one of the biggest factors to reduce body roll and are a great tool for fine tuning your suspension. From the factory most Mustangs have the tendency to plow or push through turns, this is referred to as under steer. By installing a larger rear sway bar and tweaking the front, you’re actually going to eliminate that under steer and introduce a little bit of over steer, which means the rear of the car is going to come through the turns much quicker, and actually make the car a little bit more fun to drive. So those are the parts we have in store for our GT here today, now let’s get everything installed so I can get our GT out of the ‘shop and onto the streets, and see the difference this handling pack makes. Alright so I just got our 2000 GT out of the ‘shop and onto the street here, and it took me all of 5 seconds the realize what a difference this handling pack makes to our ride. Gone is the kind of floaty, disconnected feeling that our Mustang used to have, and it actually now feels like a sports car, it feels like it should - much more firm, much more planted, even going straight, obviously through the turns it’s a lot better as well. The car just feels like it wants to respond to your actions a lot more, making it feel like you’re actually part of the car, which is great, and you can just slide turn to turn, going straight here like I said, the car just reacts well to whatever you want to do to it. We have a nice right hander coming up, let’s see how the car reacts with our new mods installed. All right, so much better, the car is just so firm and so planted going through those turns, that can definitely be attributed to those sway bars working with that SR Performance strut tower brace to really reduce our body roll and our chassis flex. I got a nice left hander coming up as well. Oh yeah, you can totally come into a turn now with much more speed and much more confidence going through the turns. The nice thing about the springs too, obviously they lower the car making it look a lot better and handle a lot better, but it’s also better for acceleration and our braking. The car doesn’t want to nose down now when you’re hard on the brakes coming into a turn, making it feel a lot more solid. Those QA1 Caster Camber plates are probably not going to make the biggest difference in your everyday drive however it was able to get our car back into spec after we lowered it about an inch and a half, just so we didn’t chew up our tires and made for a lot better handling. So there you have it, this handling pack really made a world of difference on our GT and really made our car a lot more fun to drive. Be sure to check out some of our other ’99-’04 bolt-on build ups where we work on our appearance, help get our GT off the line, and give it some more power.

    Improves Handling. Installing a set of SR Performance Progressive Rate Lowering Springs on your Mustang is an inexpensive way to improve its handling performance. These Springs were engineered to lower your Mustang's center of gravity, which will helps to reduce squat during rapid acceleration, body roll in the corners, and excessive nose-dive under hard braking. SR Performance Springs are great for daily driving, street, and even occasional track use.

    Sleek Lowered Stance. A set of SR Performance Springs not only improve the handling performance of your Mustang, but they also improve its overall appearance. By lowering the ride height approximately 1.5" front and rear, that huge tire to fender gap is eliminated. These Springs will provide your Mustang with a sleek, muscular stance that will be sure to get you noticed on the street and at the track.

    Progressive Design. Progressive springs (also known as variable rate springs) are designed to be more compliant when riding over rough and uneven surfaces like public roads. Progressive springs are engineered with a low starting spring rate that increases as the spring compresses. Variable rate compression allows for a smoother ride, while still providing good handling characteristics when pushed hard. This makes progressive rate springs a popular choice for daily street driven Mustangs. 525 lb/in - Front; 250 lb/in - Rear

    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.

    Professional Installation Recommended. Seeing that a spring compressor is required for installation of these Lowering Springs, AmericanMuscle recommends professional installment. With the proper tools, the install can be completed in about three hours. Please note that an alignment is highly recommended after installation.

    Recommended Upgrade. When installing new Springs on your Mustang, you should also replace your old worn out rubber Spring Isolators with a new set of Polyurethane Spring Isolators at the same time, see ordering options above.

    Application. This set of four SR Performance Progressive Lowering Springs are specifically designed for use on 1979-2004 Ford Mustang coupes, including the LX 5.0, V6, GT, Bullitt, Mach 1, and 1993-1998 SVT Cobra models. Does not fit 1999-2004 IRS-equipped SVT Cobras.

    SR Performance

    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

    MPN# 53150

    CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

    What's in the Box
    • (4) Lowering Springs
    Installation Info
    Tech Specs
    Springs Specifications
    Spring Rate: Front: 525 lb/in
    Rear: 250 lb/in
    Usage: Street
    Year: 1979-2004 GT, V6, Mach 1, 1993-1998 SVT Cobra Model: Fastback/Coupe
    Progressive or Standard: Progressive Estimated Drop:

    1.5"F / 1.5" R

    Will it fit my Mustang?
    • Bullitt - 01
    • Cobra - 93, 94, 95, 96, 97, 98
    • Cobra R - 93, 95, 00
    • 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 - 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04

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

      Customer Photos (100+) Submit Your Photo

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        Questions & Answers (91)

        5 Top Rated Questions

        will this cause my car to scrape? will the drop with these springs cause my 02 GT to scrape on speed bumps and such?

        • 1 .5" inch drop most of the time isnt enough of a drop for everyday driving and most speed bumps.things like tire size, ground effects play a part also whether your car will rub or not. most bumps are 6" tall or shorter, measure the lowest place under your car,then take an extra 1.5 " off that and you will have your answer. good luck,pappy

        Helpful (20) Show 4 more answers

        Will the drop differ on a convertible? If so by how much, would the drop still be 1.5?

        • This kit is designed specifically for the coupes due to how the weight distribution and suspension is setup, these springs have a lighter spring rate than that of the convertibles due to the convertible models being heavier than their coupe counterparts. The drop on this kit if used on a convertible would increase by about .1-.15 inches because of the softer rate, also, the ride quality will be effected because of this.

        Helpful (14)

        actual drop? How much will these springs actually lower a 98 cobra? Most of the time it seems springs lower less the advertised.

        • it will take a little time to settle once installed but they will drop to there advertived specs.

        Helpful (10) Show 4 more answers

        What is gained by getting the more expensive springs These SR Performance Lowering Springs #53150 Look like what I want at a good price. I was just wondering what is gained by purchasing a set of the more expensive lowering springs. I am thinking about with regards to ride mostly. Do you get a softer ride when you spend more money? I would be installing them on my 98 SVT Cobra Convertible Mustang mostly for the looks and don't want to have it riding like a chuck-wagon. I look forward to your input. Fred Wagner

        • I installed mine on my 03 GT. Theyre a progressive spring so they're soft when you're cruising and stiffen up under pressure from what I understand. Great for a DD, but I have no idea how long they'll last.

        Helpful (7) Show 2 more answers

        Will these fit on the base model 1995 V6 Mustang?

        • These springs will fit a V6, but the spring rates were specifically designed for the extra weight of the V8. While you can install these on a V6 no problem, you're not going to get as big of a drop as you will on a V8.

        Helpful (4) Show 2 more answers
        Post Your Question
        10 More Questions
        Is it necessary to install Caster/Camber plates or can i get by without on a drop of 1.5" 1 answer
        Has anyone experienced the need for offset steering rack bushings from using these springs? 1 answer
        I have 17x10.5 inch rims on the back of my mach 1 with 315 tires. Will the car be too low with thees springs installed for the wide tires on the back? 1 answer
        I am running a squared stance with 285/35r18's all the way around and it doesn't rub at all. I am wondering if the 1.5in drop in the front will cause my tires to rub on turns? 1 answer
        Do I need to buy the spring isolators and if so why? 3 answers
        Will these springs fit a 1990 lx 5.0 hatchback? 3 answers
        It says progressive but the given spring rate is a set number, if it is progressive whats the actual progressive rates or at least zones? How much might this also drop a V6 total? 0 answer
        I know these springs are made for a lighter car, but would these fit my 1998 Grand Marquis? I have all coils, no air bags. It might lower more than 1.5 being that my car weighs almost 2 tons, but I am just wondering if they fit? Thanks 1 answer
        Hi Guys, planning to lower my car i have a 17 inch rims. does the 1.5" inch total drop will lower your car with ISO or without ISO. thanks so much for your help.. god bless! 0 answer
        What is the difference between the SR performance progressive lowering springs and the SR performance linear lowering springs? 1 answer

          Customer Reviews (100+) Write a Review

          Overall Rating 4.7

          out of 5 stars

          Installation Time:Afternoon

          Installation Cost:$100-$250

          • Handling Improvement 4.488 4.5
          • Ride Quality 4.418667 4.4
          • Appearance 4.680851 4.7
          • Bang For Your Buck 4.784 4.8



          • 5/5

            Installation Time: Afternoon

            July 11, 2019

            Gotta have

            They’re really good and make the car feel brand new the feeling they give u while ur driving is great. Unlike the old rusted out springs this should be a first mod. It took me a year to buy these I was skeptical at first but I’m glad i purchased these.

            jordann

            Year: 2004 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Afternoon

            June 15, 2019

            1995 gt

            Gives an aggressive stance and gives a smooth ride also for a great deal

            JoseP

            Year: 1995 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Afternoon

            June 14, 2019

            4 x 4 stance

            Lowered my Mustang to the height it should’ve always been thank you American Muscle for putting the cool back in my stang‼️

            PeteyV

            Year: 1999 Submodel: GT

            Helpful (0)

          • 4/5

            Installation Time: Afternoon

            June 09, 2019

            Spring swap

            As advertised 1 1/2 inch plus of drop. Finish on the springs could be better but for the price I won't complain. Stiff as expected ride and noticable improvement in cornering

            bak11

            Year: 1999 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Afternoon

            June 07, 2019

            Great springs

            Easy install, just got aligned and minimal impact on towing.

            Sigep1983

            Year: 2002 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Afternoon

            May 27, 2019

            SR Performance Progressive Lowering Spring Review

            These springs were the first mod on my GT. They arrived in very good condition. The finish was not chipped or scuffed. The car looks, rides, handles great.

            GP54

            Year: 2003 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Shop Install

            Installation Cost: $100-$250

            May 22, 2019

            Wicked 98

            Nice springs. The car sits really nice and it handles great.

            Jeff

            Year: 1998 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            May 19, 2019

            SR Performance Progressive Lowering Springs

            definitely makes a big difference when it comes to look, haven't really noticed in handling deficiencies.

            James

            Year: 2009 Submodel: GT

            Helpful (1)

          • 4/5

            Installation Time: Afternoon

            May 07, 2019

            Good Product

            Very easy install and nice stance, handling was also improved overal.

            zapbrad04

            Year: 2003 Submodel: V6

            Helpful (2)

          • 5/5

            Installation Time: Afternoon

            May 01, 2019

            Good product for the price

            They fit and my car looks better with the lowered looked

            AlexanderO

            Year: 2004 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Afternoon

            April 30, 2019

            Very Happy with fit and function

            I installed these on my 2003 Mach 1 and am happy with the results. Since the Mach 1 is already lower than a standard GT....my drop wasn't quite as much as the package said (more like 1")….however, Im happy and the car looks much better.

            RobertL

            Year: 2003 Submodel: Mach 1

            Helpful (0)

          • 5/5

            Installation Time: Afternoon

            April 29, 2019

            The Wife loves them

            Dropped the car enough to close the gap between the fender and tire , but not too much to sacrifice the ride .

            PaulJ

            Year: 2002 Submodel: V6

            Helpful (1)

          • 5/5

            Installation Time: Afternoon

            April 28, 2019

            Great budget springs

            These springs stiffed my car up and it looks great now.

            Justintime80

            Year: 2002 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Afternoon

            April 24, 2019

            Perfect fit

            Great replacement for my oem springs. Lowered about 2 inches. Tire fitment now perfect

            Whoolagan

            Year: 2001 Submodel: V6

            Helpful (1)

          • 5/5

            Installation Time: Afternoon

            April 15, 2019

            Lowering springs

            After installing the springs, the wheel gap was gone and it just looked awesome! Was the look I was going for. As a daily driver, the springs are stiffer for sure, I can feel some smaller bumps easier but not bad. The highway was a smooth ride for sure. The price was great, shipping was timely and I am very happy with the overall outcome. Thank you!! :)

            Austin

            Year: 1996 Submodel: GT

            Helpful (1)

          • 5/5

            April 11, 2019

            Incredible improvement!

            Someone had cut the stock springs in my 2000 GT convertible - the ride was very harsh, like a buckboard! These springs are a vast improvement, absorb the shocks from the road without losing road feel, incredible improvement over my not-so-stock situation, and still look great, eliminating that wheel gap that (uncut) stock springs provide

            patbygeorge

            Year: 2000 Submodel: GT

            Helpful (0)

          • 5/5

            April 11, 2019

            Awesome!

            Love the new look and ride quality! First day on and they look great, can't wait to see how it looks when the 'drop' settles in. . . Thanks!!!

            BrianP

            Year: 2000 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Afternoon

            April 04, 2019

            Great Ride Quality!!

            Ride quality is way better than I thought. I feared a harsh ride between the lowering springs, and the lower profile tires, but was very pleasantly surprised at how good the ride quality is. The factory springs with 93k miles were very bouncy. These springs rebound quickly but also are not harsh over potholes. Did not do shocks and struts, but will be in the future. Can only improve a very good ride quality.

            JohnR

            Year: 2003 Submodel: GT

            Helpful (1)

          • 5/5

            Installation Time: Afternoon

            April 01, 2019

            Springs

            Dropped my notch and made it sit nice and even if your looking for a nice solid look these springs are the way to go

            JoseS

            Year: 1990 Submodel: LX

            Helpful (0)

          • 4/5

            Installation Time: Afternoon

            March 24, 2019

            they look great

            pretty easy job - front and rear. took me and my brother 5hrs, rear dropped 1.25 - front dropped 2'' love the stance now

            lees

            Year: 2002 Submodel: GT

            Helpful (3)

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