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KONI STR.T Rear Shock (15-19 GT, EcoBoost, V6)

Market Price $140.99 You Save 12% ($16.87)
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$124.12 (each)

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  • Item 397383

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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 2019 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 2015-2019 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 2019 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 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?

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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 (1)
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    Customer Reviews (9) Write a Review

    Overall Rating 4.9

    out of 5 stars

    Installation Time:Afternoon

    Installation Cost:0-$100

    • Handling Improvement 4.888889 4.9
    • Ride Quality 4.888889 4.9
    • Fit 5 5
    • Bang For Your Buck 4.777778 4.8

    • 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 (1)

    • 5/5

      Installation Time: Afternoon

      November 13, 2018

      Koni shocks

      Love the shocks works great with the sportlines springs


      Year: 2016 Submodel: GT

      Helpful (3)

    • 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 (4)

    • 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 (6)

    • 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 (5)

    • 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 (8)

    • 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 (6)

    • 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 (6)

    • 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 (5)

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