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KONI Sport Adjustable Shock, Strut & Eibach Pro-Kit Lowering Spring Kit (11-14 GT, V6)

Market Price $1,060.99 You Save 12% ($122.55)
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$938.44 (kit)

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  • Item 390840
  • MPN# 1145 1092

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    Features & Details

    • Complete Suspension Kit
    • Improves Handling Performance
    • Reduces Body Roll
    • Aggressive and Sporty Appearance
    • Adjustable Shocks and Struts
    • Twin-Tube Gas Pressure Design
    • Front Drop Up to 1"; Rear Drop Up to 1.5"
    • Progressive Rate Eibach Pro-Kit Springs
    • Fits 2011-2014 GT, V6, and BOSS Mustangs
    Dynamic Driving Style. Drop your center of gravity and add some thrill to your 2011-2014 Mustang ride. Replace your stock suspension system with this complete kit, which includes KONI Sport Adjustable Shocks and Struts in addition to Eibach Lowering Springs. You'll experience more responsive handling, a more commanding grip and a more aggressive profile – all of which add up to an exciting transformation from your previously ho-hum driving style.

    Sporty Appearance. If your goal is to intimidate and impress, this Handling Kit should be part of your action plan. Dropping the body gives an aggressive, streamlined appearance and impressive handling over stock. The confident look on your face when you're handling those hairpin turns like an experienced pro will make spectators and other drivers take notice at your local track.

    Innovative Technology. As the creator of the industry's very first adjustable shock absorber, KONI has been at the forefront of shock innovation for decades. The shocks and struts in this kit provide less chassis movement and are fully adjustable, so you can choose the dampening that fits your driving style for the road or track. Each kit is specifically engineered to fit your 2011-2014 Coupe or Convertible Mustang, so optimum performance is within reach.

    Quality Construction. Complete with a gas pressurized twin-tube design, the KONI Sport Shocks and Struts feature a durable, bright yellow finish and a larger diameter piston for optimum street performance. These fully adjustable dampers are great stock upgrades and also perfectly complement the included Pro-Kit Lowering Springs. The progressive rate springs provide a comfortable ride while lowering your center of gravity, offering better handling in curves and a reduction in nose-drive under hard braking situations.

    Installation Tips. This Sporty Handling Pack is direct fit install for your stock components and comes with everything you'll need, including illustrated instructions. A full 4-wheel alignment should be completed after installation. The initial drop may appear be less than expected, but springs will settle farther given a bit of time. Expected drops vary by model and body style:
    • Lowers 2011-2014 GT Coupe: Front - 1.0", Rear - 1.5" 
    • Lowers 2011-2014 GT Convertible: Front - 1.0", Rear - 1.5" 
    • Lowers 2012-2013 BOSS Coupe: Front - 0.6", Rear - 1.0" 
    • Lowers 2011-2014 V6 Coupe: Front - 0.8", Rear - 1.2" 
    • Lowers 2011-2014 V6 Convertible: Front - 0.8", Rear - 1.2"


    Application. This KONI Sport Shock, Strut & Eibach Pro-Kit Lowering Spring Kit is specifically designed to work with all 2011-2014 GT, V6 and BOSS 302 Mustangs.

    Fitment: 2011 2012 2013 2014 Details

    CA Residents: Warning: California's Proposition 65

    What's in the Box
    • (2) Sport Adjustable Front Struts
    • (2) Sport Adjustable Rear Shocks
    • (4) Eibach Pro-Kit Lowering Springs
    Installation Info
    Tech Specs
    Lowering Spring Specifications
    Spring Rate: Front: NA lb/in.
    Rear: NA lb/in.
    Usage: Street
    Year: 2011-2014 GT, V6, BOSS Model: Coupe & Convertible
    Progressive or Standard: Progressive Estimated Drop: 1.0" F / 1.5" R
    0.8" F / 1.2" R
    0.6" F / 1.0" R
    Will it fit my Mustang?

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    Customer Photos (5) Submit Your Photo

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    Questions & Answers (5)

    5 Top Rated Questions

    I have a 2014 GT - Track Pack - Manual. Will these require the use of caster camber plates to align everything after they are swapped. I'm guessing that from only a 1" drop in the front end the answer is no but, I want to make sure. Regards, Dave

    • While it is not necessary to purchase caster/camber plates, any drop in the vehicle's suspension I recommend purchasing caster.camber plates as the new ride height will weigh on the vehicle differently than it would as it is set to a stock height.

    Helpful (1)

    What adjusts? For instance, I don't want to lower the front at all and I only want an inch in the rear. Is this possible? Or is it just the soft and hardness of the ride that is adjustable? Thank you

    • The KONI Sport Adjustable Shock, Strut & Eibach Pro-Kit Lowering Spring Kit allows you to adjust the softness/harshness of the ride. This will not actually adjust your ride height.

    Helpful (0)

    Would this kit, still give your daily driver a smooth ride instead of a rough and stiff ride?

    • Anytime lowering your car will result in a more stiff ride when compared to the factory ride quality.

    Helpful (0)

    Install questions: 1) are any of the old strut parts reused? Install video didn’t show the jounce kit or shaft cover being used in the Koni’s, although they are on the stockers. 2) Strut to spindle torque? Video says 85ft/lbs for strut to spindle, but the Factory torque appears to be 166.

    • When installing the KONI Sport Adjustable Shock, Strut and Eibach Pro-Kit Lowering Spring Kit, the jounce bumpers will be reused. The Strut to spindle bolts should be torqued to 166 Lb ft, and the strut rod nut should be torqued to 76 lb-ft.

    Helpful (0)

    Are Eibach camber bolts good enough to properly align the car?

    • The Eibach camber bolts would work well with this KONI Sport Adjustable Shock, Strut & Eibach Pro-Kit Lowering Spring Kit to help realign the car.

    Helpful (0)
    Post Your Question

    Customer Reviews (8) Write a Review

    Overall Rating 4.6

    out of 5 stars

    Installation Time:Full Day

    Installation Cost:$250-$500

    • Handling Improvement 4.833333 4.8
    • Fit 4.666667 4.7
    • Bang For Your Buck 4.5 4.5



    • 4/5

      Installation Time: Afternoon

      October 09, 2018

      Koni

      Great product. Really glad I went with the adjustable.

      TylerK

      Year: 2014 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $250-$500

      September 19, 2018

      Worth the $$

      I've only had these installed for 2 weeks and they are still settling in but this is how the car should have come stock. It handles great, no more 4x 4 look, and the braking improvement was very surprising! I wish I would have done this the day I bought new in 2011.

      Disco

      Year: 2011 Submodel: GT

      Helpful (0)

    • 4/5

      Installation Time: Afternoon

      May 05, 2018

      Install...recommend extra parts

      Install went fairly easy, took me about 4 hours in a garage. I decided to purchase a new pair of Ford upper strut mounts to use with the Maximum Motorsports Caster Camber plates which allowed me to leave my original struts assembled. The most difficult part of the install was assembling the front struts with the Ford strut mounts and CC plates...just a pain to keep them assembled while using a spring compressor. Wish Koni would include dust boot for the front...using KYB SB111 ones off Amazon...seem to fit fine. Have them set one half-turn from the softest setting for now...seems to ride well. Ride seems a bit firmer, which is to be expected. Real test is at an autocross event to see if how well it works to contain roll and plant tires.

      Cheeser

      Year: 2013 Submodel: GT

      Helpful (3)

    • 5/5

      Installation Time: Afternoon

      January 05, 2018

      great

      Easy install. perfect height lowered springs. A lot of adjustment in the struts .Thumbs up on this product.

      JuanZ

      Year: 2013 Submodel: GT

      Helpful (3)

    • 5/5

      Installation Time: Afternoon

      October 03, 2017

      Fantastic

      This combo is phenomenal. I previously had these same shocks and struts on my last s197 with the SR springs and this package is WAY more comfortable as a daily driver, yet to push it too hard, but already have reservations in the NC mountains to push their limits.

      Blaine1016

      Year: 2011 Submodel: GT

      Helpful (4)

    • 4/5

      Installation Time: Full Day

      July 20, 2017

      Pretty good kit for the price.

      This is a pretty good deal for the price. I replaced my OEM adjustable shocks and struts on my 2012 BOSS 302 with this setup. The springs in the rear lowered the back and a bit more than I had expected. It can get pretty bumpy. I may take it up a half inch in the rear, but haven't put more than 100 miles and one auto cross race on this setup yet so I'm not exactly sure yet if I'll need to take it up a notch. Best point I can make is that It certainly did help lower the center of gravity and stabilize my turns throughout the autocross course, I'll give it that for sure!! Not to mention the lowered stance looks nice and aggressive! ( install time was about 3/4 of a day )

      MichaelS

      Year: 2012 Submodel: Boss

      Helpful (4)

    • 5/5

      September 06, 2016

      Looks, Comfort and Performance

      Eibach Koni = Pure driving bliss. The Pro-kit gives the 5.0 that desired look by getting rid of the 4x4 look, without being unpractical. The springs are progressive rate, so just cruising around town gives you a buttery smooth ride quality, especially with the addition of the Yellows. I daily drive with this setup and as of now I am very happy. Side note: This could just be my car, but I have the resonator's deleted with welded in straight pipes and they hang rather close to the ground. They don't scrap, they are just close. Keep that in mind when driving.

      ImpactBlue5oh

      Year: 2014 Submodel: GT

      Helpful (7)

    • 5/5

      August 17, 2016

      Most versatile kit on the market

      I had been looking for awhile to lower my Mustang. I really wanted the Boss 302 set up with adjustable shock and struts, however they are not sold as a kit and if you buy each piece separately have a deep wallet! This was the best kit on the market for quality, ride height, and adjustability. One of the best mods I have done and I can change from softer settings for everyday driving to harder setting for autocross. It took about 4 hours to install in my garage and the quality was great!

      CDawsonAR

      Year: 2012 Submodel: GT

      Helpful (6)

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