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Ford Performance Street Lowering X-Springs (15-18 GT Fastback, EcoBoost Fastback w/o MagneRide)

Market Price $316.99 You Save 12% ($37.00)
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$279.99 (kit)

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  • Item 384408
  • MPN# M-5300-X

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    Features, Video & Details

    • Aggressive Muscular Stance
    • Improves Handling
    • Lowers Center of Gravity
    • Progressive Spring Rate
    • Estimated Drop: Front - 1.0” Rear - 1.0”
    • Clears Stock and Aftermarket Wheels & Tires
    • Intended for Street and Occasional Track Use
    • Not Compatible on MagneRide Equipped Vehicles
    • Fits 2015-2018 GT and EcoBoost Fastback

    Review & Installation Video

    Review & Install Video

    Hey, guys. Stephanie with AmericanMuscle.com, here with these lowering springs from Ford Racing for 2015 and up S550 GT and EcoBoost Fastbacks. The Ford Racing X-Springs are gonna be a good option for those of you out there that are looking for a lowering spring for street and occasional track use that's gonna maintain ride quality but still provide performance and still get rid of the majority of the wheel gap that the S550 has. These springs offer a drop of one inch all the way around the car, which is enough to lower the center of gravity to provide some handling improvements, like reducing squat and body roll in corners and eliminating nose dive under hard braking. A one-inch drop is also gonna improve things on the appearance side, so no more big wheel gap, and you'd be surprised at how well the S550 chassis responds to just a one-inch drop in both the function and the looks categories. The one-inch drop will keep a little bit of space between the tire and the fenders, but it's even-looking and I wouldn't consider it a gap anymore. It's a functional low, and by that, I mean it's low enough to look good but not low enough to causes issues either on the tire or under the car. It's gonna leave you with a very streetable car still. You may have already noticed, but the majority of springs are only offering a one-inch drop because the S550 chassis doesn't need a huge drop to obtain better looks or an improvement in handling. The S550 responds well to what some of the older generation Mustangs would consider a very small change in ride height. There are some springs that'll give you a larger drop, but not by much, but they will still get you lower if you're looking for the maximum drop from a spring. And these are gonna be compatible with both the factory and aftermarket wheel and tire setups, which is just another plus of the 1-inch drop. Just for reference, we did install these on our 2015 EcoBoost with 255/40-19s and 305/35-19s on the rear. The drop will look a little different, depending on your wheel and tire setup. The other thing to consider when you're shopping for springs, besides the drop, is ride quality. These are a progressive spring, which means that they have a progressive spring rate, and that means that they're a good option for a street car. They don't have a harsh ride quality, but they will firm up as you start pushing the car, which works to give you the best of both worlds between comfortable and functional. Normally the trade-off with springs is less ride quality for better performance or a better look, since in typical fashion, the factory suspension is set up more for having a comfortable ride quality and being easy to drive than anything else. The stock springs are soft and they allow for wheel hop and a lot of body roll in the corners, so there's a lot of room for improvement. As far as ride quality, though, these aren't far off from stock. They're not a stiff spring. They are more forgiving. You'll probably notice a difference in ride if you drive your car every day. It will be a little stiffer, but it's not uncomfortable. Overall, these springs are intended for street or occasional track use, so they do give a stiffer-than-factory ride quality. But they're made to not be harsh, so still comfortable but also able to perform when you want them to. Ford Racing does also offer a track spring if you want something more along those lines. As far as price, these springs are gonna be right in between $200 and $300 mark, which is right where the majority of other springs are falling as well. Of course, there are some breakout springs that are either less expensive or more expensive than that and even springs that are all across this price range. At the end of the day, it's really about what you want from your springs and what you plan on doing with your car, and that will help direct you to the right spring. So the install here is gonna take about four hours, and I'm gonna call it a solid one out of three wrenches on the scale. Because you will need some knowledge to complete this install, so I'd recommend having a knowledgeable helping hand or taking this to a shop for the install if you haven't done this before. It's always good to get an alignment after the install. This install can be done on jack stands if you don't have access to a lift, but as usual, a lift would be your best bet here. You're gonna need a few tools, including a spring compressor, so make sure you have that before you start the install. You're gonna need to get down to the spring and strut assembly, so everything like the wheels, brakes, ABS line, and will need to be moved out of the way so you can pull the assemblies out of the car. The spring compressor will help you remove the spring from the strut and install the new front springs, which are compressed and installed the same way. The strut assemblies go back the same way they came out, and the install's the same for both sides. The rear is where things are a little bit different, but nothing crazy here. Essentially the IRS subframe will be dropped, along with the rear shock mat, so you can slide the rear springs out. Just like the front, the rear springs install the same way they were uninstalled, no surprises here. The new bump stop is slid onto the shock followed by the factory dust boot. The new spring can then be installed, and the IRS subframe can be bolted back up. That's about all it's gonna take. Like I mentioned earlier, a fresh alignment after the install isn't a bad idea. Wrapping things up here, the Ford Racing X Lowering Springs offer a one-inch drop all the way around, they have a progressive spring rate, and they're designed for street and occasional track use. As always, I suggest you check these out more online for yourself, and for all things Mustang, keep it right here at AmericanMuscle.com.

    Improves Handling. Installing a set of progressive rate Ford Racing X-Springs will lower your Mustang's center of gravity, which will reduce squat during acceleration, body roll in the corners, and excessive nose-dive under hard braking. Ford Racing X-Springs are great for daily driving, street, and even occasional track use.

    Aggressive Stance. The Ford Racing X-Springs not only improve the handling of your S550 Mustang, but they also improve the overall appearance by lowering the ride height approximately 1.0" to eliminate that nasty raised 4x4 truck look for a more aggressive muscle car stance.

    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 four Ford Racing X-Springs are designed specifically for use on the 2015-2018 GT and EcoBoost Fastback Mustang models. Does not fit convertible models.

    Technical Note. The Springs are not compatible on vehicles equipped with the MagneRide Suspension.

    Fitment: 2015 2016 2017 2018 Details

    What's in the Box
    • (2) Front Springs
    • (2) Rear Springs
    • Jounce Bumpers
    Installation Info
    Tech Specs
    Springs Specifications
    Year: 2015-2017 Usage: Street
    Model: GT, EcoBoost Model: Fastback/Coupe
    Progressive or Standard: Progressive Estimated Drop:

    1.0"F / 1.0" R

    Will it fit my Mustang?

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    22 Questions / 22 Answers

    Ask a Question

    Hows the spring rate on these compared to performance pack spring rate

    BillySAW951

    • Unfortunately Ford does not provide a listing for the spring rate of the Performance pack springs, however the Ford Performance Street Lowering X-Springs seem to have a similar feel, though slightly stiffer, than the performance pack cars we have driven.

      Rob D

    Helpful (1)

    Hello guys. I drive my car daily to work, don't track (drag) the car often. Are these the right springs to use with a '17 Perf. Pack GT or are the Track springs a the right combination?

    ErikT

    • Yes, this will be able to be used on that style of car without issue, with it being a progressive spring rate, the quality of ride on the vehicle is mostly unchanged until cornering harder or going at a higher rate of speed, making it excellent for a daily driver.

      AMjordan

    Helpful (1)

    Will these springs also lower a performance pack gt 1" or is thia for a base GT. I have seen some places say the PP GT is already .5" lower but I can't confirm this to be true.

    Matt

    • Thank you for your question about the Ford Performance Street Lowering X-Springs - Fastback (15-17 GT, EcoBoost). The 1 inch drop is going to apply to the Performance Pack GT. The Performance Pack GT does come with springs rated differently than other GTs, but the overall ride height would be the same.

      AMRich

    Helpful (1)

    I’ve currently got a a 275/35/20 and 315/35/20 on my 2017 Performance Pack. The current wheels have the same offset as factory performance pack wheels. Would these springs cause me to rub or would it just be a tight fit?

    SamL

    • The Ford Performance Street Lowering X-Springs will provide minimal lowering on Performance Pack equipped Mustangs, as the Performance pack came with a 0.75"-1.0" drop.

      AMRobD

    Helpful (0)

    I'm currently running 20 by 10 rims on my S550 I have Mickey Thompson Street competition tires 20 35 305 in the rear would I be able to lower my S550 or will the tires scrape???,

    AncientRuins

    • The use of this Ford Performance Street Lowering X-Springs and different wheel/tire set-ups would really depend on the offset of the wheel. We would highly recommend measuring the clearances in your wheel well to ensure a one inch drop would still provide sufficient clearance.

      AMJEFF

    Helpful (0)

    Will these retain the 1” drop on the front with an Ecoboost? The GT is heavier in the nose so I’m thinking a 3/4” drop front with an Ecoboost?

    TonyM

    • The Ford Performance Street Lowering X-Springs will lower the Ecoboost Mustang approximately 1" in the front and the rear.

      AshleyK

    Helpful (0)

    People Who Bought This Item Also Bought

    Customer Reviews (39) Write a Review

    Overall Rating 4.9

    out of 5 stars

    Installation Time:Full Day

    Installation Cost:$250-$500

    • Handling Improvement 4.742857 4.7
    • Fit 5 5
    • Bang For Your Buck 4.714286 4.7



    • 5/5

      Installation Time: Afternoon

      June 06, 2018

      What I expected

      Closed up the fender gap like I wanted and kept the factory warranty.

      Perry

      Year: 2018 Submodel: EcoBoost

      Helpful (1)

    • 5/5

      Installation Time: Afternoon

      April 18, 2018

      Just the right drop

      I’m running 20x10 305/35/20 rears and 20x8.5 255/35/20 fronts. This spring kit lowered it just perfect 1inch all the way around. The ride is almost like stock and doesn’t hit bumps hard. Very smooth and enjoyable ride on the long road.

      EJ

      Year: 2017 Submodel: GT

      Helpful (3)

    • 5/5

      Installation Time: Afternoon

      April 13, 2018

      Perfect ride hight and quality

      Took 4 hours to install and I love drivin my s550 not only because it looks better but because drives WAY better. Handling and take off is fun now. If you know what I mean.

      StevenC

      Year: 2015 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Afternoon

      April 05, 2018

      OEM Quality, Fit, and Finish

      Install took four hours with hand tools, a jack and jack stands by myself after watching an install video online. After the install I needed cam bolts to get the front end camber back in spec. I have a performance pack so this completed the Ford Handling Pack and I love the way it responds now.

      CharlesH

      Year: 2016 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $250-$500

      March 28, 2018

      Good to keep warranty

      Rides great looks great and the get to keep warranty. Sucks having a ford dealership install to keep warranty cause they charge an arm and a leg but overall good product!

      AlejandroV

      Year: 2017 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $250-$500

      February 22, 2018

      Stock comfort, without the stock height

      I wanted to maintain the factory warranty so I was always going to go with a Ford product, but I spent a month trying to decide between just springs or the full street or track packs offered by Ford. In the end I decided I really wasn't going to be tracking this car enough to justify the extra $1000 for one of those kits, so I went with these. They do drop the car an inch all around (no rake). My girlfriend didn't notice the lower ride height (thank god) but other Mustang owners will notice you no longer riding around with your head literally in the clouds on the stock setup. Car rides as comfortably as stock but with the lower ride height you're gonna have less body roll. If you're going to drop the car make sure you get some sort of spacers for the wheels as well to close the gaps you'll accentuate horizontally. I went with 1/4 inch spacers and while not as much as an inch spacer, it does make a noticeable difference, and I was able to still have enough thread to secure the wheels to the stock lugs. I had Ford install these springs. 3 hours of shop time at $100 per hour...well worth the investment.

      vinnyfonz

      Year: 2017 Submodel: GT

      Helpful (5)

    • 5/5

      Installation Time: Weekend

      February 19, 2018

      17 Convertible Street Performance

      Love the new look of out 17 Convertible Mustang after installing these springs. Also we feel like it rides so much better then it did with the factory springs.

      TITANWHEELS

      Year: 2017 Submodel: EcoBoost

      Helpful (4)

    • 5/5

      Installation Time: Afternoon

      February 15, 2018

      Nice look, great performance

      Drop was exactly 1" all around just as shown in the specs. I have a 2015 Roush Stage 2, look is great! Performance wise, it's very noticeable on the launch. Rear of the car does not dip and allows the tires to plant into the ground better. I was able to install these with basic hand tools in my driveway. Use a good spring compressor to take take apart the front struts.

      IvanS

      Year: 2015 Submodel: Other

      Helpful (4)

    • 4/5

      Installation Time: Full Day

      February 04, 2018

      IM HAPPY ENOUGH

      THE CAR HANDLES WAY BETTER AND LOWERED JUST A LITTLE EXACTLY WHAT I WANTED BUT IT DOES GIVE MORE ROAD NOISE UP FRONT WHICH KINDA SUCKS BUT NOTHING LOUD MUSIC CANT FIX I SUPPOSE. DRIVES LIKE STOCK THOU SOFT AND COMFY YET SPORT WHEN NEEDED.

      NicolayB

      Year: 2016 Submodel: GT

      Helpful (4)

    • 5/5

      January 04, 2018

      BUTTER

      Perfect drop if you are running a 305 or more on rear. The car rides way better than stock. Highly recommend this product.

      JBon

      Year: 2016 Submodel: GT

      Helpful (3)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $100-$250

      December 26, 2017

      Ford performance lowering springs

      Great product so far. Stance is perfect, ride quality is not compromised whatsoever and warranty kept with no question being ford performance parts. 100 suggest getting even though there a little higher than most aftermarket spring kits.

      CurtisB

      Year: 2017 Submodel: GT

      Helpful (3)

    • 5/5

      Installation Time: Full Day

      November 21, 2017

      15 eco

      The car locks very good but it was so hard to do the work don’t do it bi you self

      Liue813

      Year: 2015 Submodel: Other

      Helpful (3)

    • 5/5

      Installation Time: Shop Install

      August 29, 2017

      Improvement

      Fords lowering springs help the look of my 2016 GT and I love the handling improvements. The improvements have added to the Mustang driving experience.

      Shellback901

      Year: 2016 Submodel: GT

      Helpful (3)

    • 5/5

      Installation Time: Full Day

      July 13, 2017

      Love these springs

      These make for a perfect drop in my opinion. Nothing extreme but definitely noticeable and gets rid of the major wheel gap. I can still clear my driveway and moderate bumps without any problems. I have not noticed a big change in drive quality on my PP mustang. Everything feels about the same to me. I love the look it gives though! Paired with 25mm spacers on all wheels looks great! No rubbing.

      stang15

      Year: 2015 Submodel: GT

      Helpful (7)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $250-$500

      July 12, 2017

      Great Look!

      The car looks great! Rides just like stock. Definitely worth the money.

      Chris0421

      Year: 2016 Submodel: GT

      Helpful (4)

    • 5/5

      Installation Time: Afternoon

      July 12, 2017

      Ford Springs

      Love the springs. A little pricey, but my warranty is not effected with these. A little more lowering would be nice, but overall a very good spring.

      Collis

      Year: 2017 Submodel: GT

      Helpful (4)

    • 5/5

      Installation Time: Afternoon

      July 04, 2017

      Car looks and rides better

      Have a Euro performance pack car, which had horrible gaps in the wheel arches. Fitted these, it looked a lot better, biggest surprise is that it also rode better than on the stock springs - less roll in corners, more compliance over low speed bumps - recommend.

      BenH

      Year: 2016 Submodel: GT

      Helpful (5)

    • 5/5

      Installation Time: Afternoon

      July 01, 2017

      Get rid of that fender gap!!

      I really like the look of my GT after dropping it 3/4"-1". Fender gap is greatly reduced. Ride comfort seems to be the same as the original springs. Handling appears to be more crisp. Job is doable, just make sure you have decent spring compressors. Don't buy the scissor spring compressor from Harbor Freight. Added 20mm wheel spacers that really finish off the look. I do wish they dropped the front end a little more, although I already scrape when leaving my driveway. Had to buy a low profile jack since mine was too high. Costco has a good deal on a low profile jack that works great.

      GTmadness

      Year: 2016 Submodel: GT

      Helpful (6)

    • 5/5

      Installation Time: Afternoon

      June 26, 2017

      Keep your warranty

      I have never been one to use performance parts from specific car manufacturers, as I have found them to be expensive and under performing. In the case of ford performance parts for my s550 GT, I have found that they are priced slightly above market price, but perform about the same. In my eyes, keeping my warranty is worth it. That being said, day 3 after owning the car the cat back went on, day 5 power pack2, and day 7 came the springs. I am used to import tuner handling (Evo, MS3, G35, VR6), this is not that, but it's a definite improvement over stock. Plus, I love how rides look lowered. So if this is what you're looking for, I encourage you to get them.

      RafaelC

      Year: 2017 Submodel: GT

      Helpful (4)

    • 5/5

      Installation Time: Afternoon

      June 01, 2017

      Great Look

      I did installed these by myself in my garage with a jack and jack stands. I highly recommend that you have a friend help if you do it without a lift. Also I recommend the you use the one piece spring compressor tool. The two piece compressors kept slipping. Overall these springs dropped my Performance Pack closer to 1.5 inches around. It looks really good. The balance is much improved. I drive mine everyday so I do notice a bit stiffer ride, but it's not bad at all compared to how well the car rotates in the turns. These springs are awesome.

      ChristopherW

      Year: 2016 Submodel: GT

      Helpful (6)

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