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Defenderworx Quarter Window Louvers (15-18 All)

Market Price $229.97 You Save 5% ($11.50)
Our Price

$218.47 (pair)

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  • Item 394120
  • MPN# 901448

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Quoted installation from $125

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    Features & Details

    • Aggressive Styling
    • Louvered Design
    • Polyurethane Construction
    • Matte Black Finish
    • Simple Peel and Stick Installation
    • Driver and Passenger Side Louvers Included
    • 4-Year Limited Warranty
    • Fits all 2015-2018 Ford Mustang Fastback Models
    Aggressive Modern Design. Make your Mustang stand out at your next car show with a set of Defenderworx Quarter Window Louvers. These stepped Louvers were designed to give your fastback S550 Mustang a more aggressive muscle car appearance. With these Quarter Window Louvers on your Pony, you are guaranteed to turn heads wherever you go.

    Polyurethane Construction. DefenderWorx manufactures their quarter window louvers from industrial-grade, OEM quality injected molded polyurethane for superior strength and long lasting durability. These Louvers are completed in a matte black finish that allows them to be installed straight out of the box.

    Easy Installation. No fuss, no muss installation. DefenderWorx Quarter Window Louvers are designed to attach to the factory C-Pillar glass with the supplied 3M doubled sided automotive bonding tape for a quick and easy installation. Just clean the surface, peel the backing and stick in place - it's that easy.

    Recommended Styling Upgrade. When installing exterior quarter window louvers or scoops on your Mustang it is recommended to add a set of quarter window blackout decals to hide the ugly back side that wasn't meant to be seen by human eyes. See option above.

    4-Year Warranty. DefenderWorx guarantees to the original purchaser of its products a 4-year, 36,000 mile warranty, against manufacturer defects in materials and workmanship under normal use. Some exclusions may apply, please see manufacturer's warranty for details.

    Application. Defenderworx Quarter Window Louvers are designed to fit all 2015 to 2018 Fastback Mustangs, including the V6, EcoBoost, GT, and Shelby GT350 models. Sold as a set of two, one driver side and one passenger side.

    Fitment: 2015 2016 2017 2018 Details

    What's in the Box
    • (1) Pair Quarter Window Louvers
    Installation Info
    Tech Specs
    Will it fit my Mustang?
    • EcoBoost - 15, 16, 17, 18
    • GT - 15, 16, 17, 18
    • GT350 - 15, 16, 17, 18
    • GT350R - 15, 16, 17, 18
    • V6 - 15, 16, 17

    Coupes Only

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    1 Questions / 1 Answers

    Ask a Question

    How much visibility do you have from the inside?


    • This Defenderworx Quarter Window Louvers will still allow some visibility, however, it will only be in the amount of the open space in the louver slots.


    Helpful (0)

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    Customer Reviews (3) Write a Review

    Overall Rating 4.3

    out of 5 stars

    Installation Time:Less than 1 Hour

    • Fit 5 5
    • Appearance 5 5
    • Bang For Your Buck 5 5

    • 3/5

      Installation Time: Less than 1 Hour

      July 20, 2017

      Defenderworx Quarter Window Louvers

      Feel durable. Easy to install, and makes the exterior look more expressive. A little pricey, but overall i would recommend. 15 minutes to install using double sided tape.


      Year: 2015 Submodel: V6

      Helpful (2)

    • 5/5

      Installation Time: Less than 1 Hour

      July 19, 2017

      Great look!

      Looks great and was easy to install! Definitely worth it.


      Year: 2017 Submodel: V6

      Helpful (2)

    • 5/5

      Installation Time: Less than 1 Hour

      February 15, 2018

      Quarter window louvers

      Easy install, simple straight forward instructions. Took like an hour. Just follow preperation instructions. Since my car is Competition Orange, I left them unpainted.


      Year: 2016 Submodel: GT

      Helpful (0)

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