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MMD Quarter Window Louvers - Matte Black (15-18 Fastback)

Market Price $299.99 You Save 17% ($50.00)
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$249.99 (pair)

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  • Item 390489-99
  • MPN# 390489-99

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    Features, Video & Details

    • MMD Quarter Window Louvers
    • Matte Black Finish
    • Open Louver Design - 3 Slots
    • Installs Inside Factory Trim onto Glass
    • Durable, Lightweight ABS Construction
    • Easy Installation - No Drilling Required
    • Fits 2015-2018 Fastback Mustangs

    Review & Installation Video

    Review & Install Video

    Retro Styling. When you envision the classic Mustangs of the 60s and 70s, there is one aspect that usually sticks out in your mind. The use of louvers has been a popular upgrade ever since their debut many years ago. MMD is now bringing you a version of S550 Quarter Window Louvers that are sure to draw attention to your ride. Finished in a killer matte black, they are installed directly to the glass and seamlessly fit inside the factory window trim. Instantly see the dramatic change in appearance these louvers will bring to your 2015-2018 Mustang.

    Durable Construction. Crafted from durable injection molded ABS plastic, these driver and passenger side Window Louvers by MMD feature an open louver design with three open slots. They are completed with a matte black finish to deliver a stealthy, blacked out appearance.

    Easy Installation. Add a taste of the ever popular retro louvers of the 60s and 70s to your S550 Mustang. This set of MMD Quarter Window Louvers has been designed for installation within the factory window trim, delivering a seamless visual appeal. Adhering directly to the window glass, these louvers use 3M automotive grade bonding tape for a durable and secure fit.

    Application. These Matte Black MMD Quarter Window Louvers are specifically designed for installation on 2015 to 2018 Mustang Fastbacks, including V6, EcoBoost, GT and GT350 models. Not compatible with convertibles or the 50th Anniversary models with the louvered quarter window glass.

    Fitment: 2015 2016 2017 2018 Details

    What's in the Box
    • (1) Driver Side Louver
    • (1) Passenger Side Louver
    • (1) Roll 3m Tape
    • Alcohol Wipes
    • Adhesion Promoter
    • AmericanMuscle Instructions
    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

    Fits Fastbacks Only! Not Compatible w/ 50th Anniversary with Louvered Glass

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    Customer Photos (6) Submit Your Photo

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    7 Questions / 14 Answers

    Ask a Question

    Will the lovers be available again?


    • Yes these Louvers will be available for sale again in the future, we are just currently out of stock.

      Doug P

    Helpful (1)

    Are these available again? I don't see them on the page listing the quarter window louvers, but this page says they're in stock again...


    • For an update on when the MMD Quarter Window Louvers - Matte Black (15-18 All) will be back in stock please click "notify me" next to where the item states out of stock on the product page.


    Helpful (0)

    Can the MMD Quarter Window Louvers - Matte Black be painted? I can't find anything in writing about this; only heard a quick mention about it in the video. My car is Ruby Red.


    • We do not offer a pre-painted option but these louvers can be painted yes!


    Helpful (0)

    I'm not sure if its a glitch with the site but there's no option to add it to cart.


    • Hello! The MMD Quarter Window Louvers - Matte Black have been discontinued. Please give us a call at 1-888-327-2339, and we can help you find another option.


    Helpful (0)

    Will these work with the Matte Black Quarter Window Blackout?


    • Since the MMD Quarter Window Louvers - Matte Black (15-17 All) mount directly to the window the Matte Black Quarter Window Blackout will not work. If you were to modify the Matte Black Quarter Window Blackout so that the louvers will still make contact with the window, then they could both be used together.


    Helpful (0)

    I currently own a 2015 GT Premium in Deep Impact Blue, but have factory ordered a 2017 in Platinum White that will be delivered in a few weeks. I don't see any options for pre-painted parts in this new color. Will you be adding the 2017 color of Platinum White to this and other offerings of pre-painted parts or am I just out of luck?


    • The MMD Quarter Window Louvers - Pre-Painted (15-17 All) unfortunately does not come in Platinum White at the moment. The 2017 models are still very new, so there can be a chance of more colors being added to our Pre-Painted parts!


    Helpful (0)

    Customer Reviews (10) Write a Review

    Overall Rating 4.8

    out of 5 stars

    Installation Time:Less than 1 Hour

    • Appearance 4.75 4.8
    • Bang For Your Buck 4.25 4.3
    • Fit 4.75 4.8

    • 5/5

      Installation Time: Less than 1 Hour

      November 15, 2017


      Installed in less then 30min. Great addition to any 2015-2017 Mustang. Gives a more complete look!


      Year: 2016 Submodel: V6

      Helpful (1)

    • 5/5

      September 18, 2017




      Year: 2016 Submodel: EcoBoost

      Helpful (2)

    • 4/5

      Installation Time: Less than 1 Hour

      July 10, 2017


      I love the look,but I don't like the position of mounting.It can be seen from inside and also by looking between the openings of lovers.I feel this should have been shown o install video.I possibly would have bought one of the others.


      Year: 2016 Submodel: V6

      Helpful (2)

    • 5/5

      Installation Time: Less than 1 Hour

      June 11, 2017

      Visual Mod Game Changer

      This product is very easy to install and gives the S550 another dimension from the side profile of the car visually. They are very durable, I've had these Louvers installed for just under a year and they have withstood very weather condition. The install to 20 minutes including surface prep for the 3M tape to adhere to. Don't worry about having a blind spot once these are install, it took all of a week to adjust to the newly installed Louvers. The great thing about the S550 side view mirrors is the smaller mirrors designed for blind spot detection. The Louvers forces you to become use this detail in the side view mirror and you will master it in no time. MMD's quarter window louver gives a great retro style to a newly designed modernized Mustang


      Year: 2016 Submodel: V6

      Helpful (4)

    • 5/5

      October 11, 2016

      Review from MMD Quarter Window Louvers - Pre-Painted (15-17 All)

      I'mean impressed

      The fit and finish was great. The install was quick and simple. Remember to take the stickers offs the inside before you install them. They are a pain to get off after the fact. The price is a little high, but to already be pre- painted was great.


      Year: 2015 Submodel: GT

      Helpful (3)

    • 5/5

      September 08, 2016

      Review from MMD Quarter Window Louvers - Pre-Painted (15-17 All)

      Incredible fit and match, looks factory!

      I am amazed at the fit and finish for my 2015 deep impact blue. The part literally looks stock, and goes a long way towards the retro splash I was looking for. Don't plan on seeing much through them, you can barely see out the slits, but that's not why I bought them. A


      Year: 2015 Submodel: Ecoboost

      Helpful (3)

    • 4/5

      August 26, 2016

      Review from MMD Quarter Window Louvers - Pre-Painted (15-17 All)


      Awesome product. Fits perfectly making my ride look hella fly. Totally panty dropper


      Year: 2016 Submodel: Ecoboost

      Helpful (2)

    • 5/5

      August 21, 2016

      Awesome look!

      Gives my car a beautiful retro vibe! Super easy install that look less than 30 minutes from start to finish. Excellent quality product that doesn't end up being too "showy." Highly recommended for those looking to a retro pop!


      Year: 2015 Submodel: GT

      Helpful (3)

    • 5/5

      August 14, 2016

      Great Look!!

      Great look on the new 2015 Mustangs! Really mean look too make the car look even sharper than it already is!!


      Year: 2015 Submodel: GT

      Helpful (2)

    • 5/5

      August 13, 2016


      Looks great in your mustang when rolling by, lots more people notice your car with this on


      Year: 2015 Submodel: Ecoboost

      Helpful (2)