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KONI STR.T Rear Shock (15-20 GT, EcoBoost, V6)

Item 397383
Market Price $142.88 You Save 12% ($16.44)
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$126.44 (each)

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    Features, Video & Details

    • Rear Shock
    • Improved Handling and Performance
    • Budget Alternative for OEM Shocks
    • Twin-Tube Gas Pressure Design
    • Durable Orange Finish
    • Non-Adjustable Damper
    • Sold Individually
    • NOT Compatible with MagneRide Suspension
    • Fits 2015 to 2020 Ford Mustang GT, EcoBoost and V6 Models

    Review & Installation Video

    Review & Install Video

    Shock for Budget Minded Enthusiast. Upgrading your S550 Mustang need not be expensive. With the KONI STR.T (pronounced “street”) Rear Shock, you can enjoy better performance at a budget price. By adding a greater damping force and improving the handling of your 2015-2020 GT, EcoBoost or V6, this rear shock lets you drive through even rough roads steadily and more comfortably.

    Quality Construction. Non-adjustable, this Koni STR.T Street Series Rear Shock features a gas pressurized twin-tube design with a larger-diameter piston for optimum street performance. This shock is completed in a durable orange finish featuring the world famous KONI Logo.

    Built for Budding Enthusiasts. It's not just the entry-level price point that makes the KONI STR.T Rear Shock an attractive option for those new to upgrading their cars. This suspension piece also has a non-adjustable design that's already tuned to top performance by default. No need to fine-tune it before installation!

    Application. The KONI STR.T Rear Shock is designed for 2015 to 2020 GT, EcoBoost and V6 Mustangs. Does

    not fit Models equipped with MagneRide Suspension.

    Note: Coupon codes cannot be applied to this product.

    Fitment: 2015 2016 2017 2018 2019 2020 Details

    MPN# 8250 1039

    CA Residents: WARNING: Cancer and Reproductive Harm -

    What's in the Box
    • (1) Rear Shock
    Installation Info
    Tech Specs
    Will it fit my Mustang?

      Customer Photos (1) Submit Your Photo

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        Questions & Answers (1)

        1 Top Rated Question

        Do these struts fit the stock rear strut mounts?

        • This KONI STR.T Rear Shock is a direct fit replacement and will fit into the factory rear shock mounts.

        Helpful (2)
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          Customer Reviews (11) Write a Review

          Overall Rating 4.6

          out of 5 stars

          Installation Time:Afternoon

          Installation Cost:0-$100

          • Handling Improvement 4.636364 4.6
          • Ride Quality 4.636364 4.6
          • Fit 5 5
          • Bang For Your Buck 4.363636 4.4

          • 2/5

            Installation Time: Less than 1 Hour

            October 20, 2019

            Went out after 2 years.

            Install was pretty straightforward. Rode good for a little bit. Completely blown after 2 years. I don’t track or race my car. It’s not even a daily driver. Just weekends and stuff. Went back to the PP shocks and rides much better.


            Year: 2017 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Afternoon

            June 08, 2019

            Rear end problem

            These plus adjustable sway bar links solved a problem with my lowered mustang, very pleased with results


            Year: 2015 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            December 19, 2018


            Better than stock ! Perfect use with lowering springs. Car didn’t sit right with stock shock absorbers.


            Year: 2015 Submodel: EcoBoost

            Helpful (2)

          • 5/5

            Installation Time: Afternoon

            November 13, 2018

            Koni shocks

            Love the shocks works great with the sportlines springs


            Year: 2016 Submodel: GT

            Helpful (4)

          • 5/5

            Installation Time: Afternoon

            August 09, 2018

            Great product, easy install

            Pair installed in a little over an hour. And of course, it's Koni.


            Year: 2015 Submodel: EcoBoost

            Helpful (5)

          • 4/5

            Installation Time: Less than 1 Hour

            May 08, 2018

            Ecoboost Shock Upgrade

            After previously adding Koni adjustables front and rear on a 2013 GT, I decided to try the "street-track" version on the rear of my 2015 Ecoboost. I had previously found the rear "adjustables" a little too harsh for daily driving even at the softest setting on the GT, but the street-track version is almost perfect for the Ecoboost with its Performance Pak option. While the Ecoboost handling is much improved over the non-IRS Mustangs, the rear shock addition added another level of handling when paired with the other Performance Pak upgrades.


            Year: 2015 Submodel: EcoBoost

            Helpful (7)

          • 5/5

            Installation Time: Less than 1 Hour

            February 23, 2018

            Good Product

            Easy install a much better ride improvement from stock.


            Year: 2017 Submodel: GT

            Helpful (6)

          • 5/5

            Installation Time: Afternoon

            October 17, 2017

            KONI STR.T Rear Shock

            Works very well with lowering springs. I have the Mustang GT with the performance package and when I lowered the car I reused the stock shocks and the ride quality lowered too. I purchased these shocks and the ride quality in my opinion is better than it was with the stock shocks and stock ride height.


            Year: 2015 Submodel: GT

            Helpful (9)

          • 5/5

            Installation Time: Less than 1 Hour

            June 28, 2017

            missing link

            The stock shocks did this car no justice. These shocks were the missing link to the performance ride I was looking for. Love the ride!


            Year: 2016 Submodel: GT

            Helpful (7)

          • 5/5

            Installation Time: Shop Install

            Installation Cost: 0-$100

            June 25, 2017

            Firm up your rear end, no pun intended

            The Koni's are a great replacement shock and really firm up the rear end of my 15 GT, more stable around corners and really put the rubber to the road when needed, definitely recommend.


            Year: 2015 Submodel: GT

            Helpful (7)

          • 5/5

            Installation Time: Afternoon

            March 24, 2017

            Better handling

            Suspention feels amazing with this shocks , recomended for racing purposes , not bad at all


            Year: 2016 Submodel: V6

            Helpful (6)

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