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MMD Quarter Window Louvers; Matte Black (99-04 GT, V6, Cobra)

Item 71320-99
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Market Price $109.99 You Save 9% ($10.00)
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$99.99 (pair)

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      Review & Installation Video

      Hey I’m Justin with, and I have with me MMD’s matte black quarter window louvers fitting your 99-04 V6, GT or Cobra Coupe. If you’re looking for a retro or modern styling part that’s going to set your ride apart from the others, look no further than MMD. They’ve quickly become the industry leader in producing cool and stylish appearance parts for Mustangs of all ages. At first glance you can see that these louvers are totally unlike anything else for the New Edge Mustang. It’s a typical louver design that typically you’d find on the back window, but has been scaled down perfectly to fit those quarter window openings. The louvers themselves are constructed using a durable, automotive grade ABS plastic, and then are finished off with that very slick matte black paint job, just like the louvers of the 60’s and 70’s. It is worth mentioning that for a few bucks more, you can pick these louvers up in a pre painted color matched option, just for a more custom look. Ok so I know these louvers are designed to improve your exterior appearance, but what about the interior? Well unfortunately the result isn’t quite the same. As you can see, the back features some casting marks and they’re just generally not all that nice to look at. We do offer some quarter window blackout decals available through the site here. These decals are designed to cover the business side of things, making for a clean look inside and out. One of the best parts about these louvers is that they install easily without the use of drilling or messy bondo. Ultimately if you decide to go with those quarter window blackout decals, you will need to install them first using a spray bottle filled with a soap and water mixture and the included squeegee. Once the decals are in place, go ahead and clean the quarter window using the supplied alcohol prep pads. Once the alcohol is dry go ahead and grab your 3M adhesion promoter, and wipe it down along all the edges where the 3M tape will go. This is a very important step because basically it’s going to ensure a nice secure bond between the louver itself and your quarter window. Once that’s done, go ahead and remove the protective backing on the pre installed 3M tape and adhere the louver carefully. Doing all this should only take you about 30 minutes, but if you are doing those quarter window blackout decals in addition, leave yourself closer to an hour. So if you’re one of the many Mustang owners out there who can’t seem to get enough of that retro louver styling, then you’ll definitely want to check out these quarter window louvers from MMD, available right here at

      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation


      • Classic Muscle Car Styling
      • Aggressive Matte Black Finish
      • Durable Automotive Grade ABS Material
      • Easy Install, No Drilling
      • Fits 1999-2004 GT, V6 and SVT Cobra Mustang Coupes


      Classic Muscle Car Styling. Add the classic styling of a late 60's Muscle Mustang to your New Edge Pony with a set of Matte Black Modern Muscle Design Quarter Window Louvers from AmericanMuscle for impressive styling.

      High Quality Construction. Made of OEM quality ultra-durable high impact ABS plastic for it's long lasting durability, these Modern Muscle Design Quarter Window Louvers are completed in a Matte Black finish for aggressive good looks.

      Easy Install, No Drilling. No messy bondo, fiberglass, or drilling is required for installation. These MMD C-Pillar Window Louvers simply install directly to the factory glass with the supplied 3M doubled sided automotive bonding tape for a quick and easy installation.

      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. Available for 1999-2004 Mustangs, see drop down option above.

      Application. These Matte Black Modern Muscle Design Quarter Window Louvers are designed to be a perfect fit on the 1999 to 2004 Mustang Coupe, including the V6, GT and SVT Cobra models. Does not fit Bullitt or Mach 1 models. Does not fit convertibles.

      Modern Muscle Design

      Fitment: 1999 2000 2001 2002 2003 2004 Details

      MPN# 71320-99

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (65)

      Write a Review

      Ratings Summary

      4.6 out of 5 overall rating from 65 customers

      Installation Time: Less than 1 Hour

      Installation Cost: $250-$500

      • February 02, 2020

        5 2004 V6 - AROD73 Installation Time: Less than 1 Hour


        Easily to install took 15 minutes Heads or turning when they look at my Mustang now

        Helpful (1)
      • August 13, 2019

        5 1999 GT - Rainmanrai Installation Time: Less than 1 Hour

        Side louvers

        Love the look of the side louvers they really make the car stand out!

        Helpful (1)
      • August 05, 2019

        5 1999 GT - Abadi

        Bad to the bone,

        Fast shipping Best customer service better than Other websites. Did I mention fast fast fast fast shipping as fast as my Gt, I love you AM , you guys are the best !!!!!!!!!!!! Car looking amazing not sun in the back , keep you cool in the summer time in TX, I love how they look, black is color to get on any stangs. 5 star all the way ♥️❤️♥️❤️♥️

        Helpful (1)
      • July 25, 2019

        5 2004 V6 - JohnA Installation Time: Less than 1 Hour

        Nice styling touch!

        Works great with the spoiler and side scoops for a very nice sport look.

        Helpful (1)
      • July 14, 2019

        2 2002 GT - Jon Installation Time: Less than 1 Hour

        Do not buy

        It looks great and all! But first car wash it ripped right off !

        Helpful (1)
      • January 26, 2019

        5 1999 V6 - DavidD Installation Time: Less than 1 Hour

        love these

        Haven't installed them yet as the weather has turned very cold, but I do love them and can't wait to put them on. well worth the price for an inexpensive upgrade.

        Helpful (2)
      • January 17, 2019

        4 2000 GT - Noah Installation Time: Less than 1 Hour

        MMD Quarter Louvers Matte Black

        Nice way too look better but not worth over $100..

        Helpful (3)
      • December 11, 2018

        5 2000 GT - JensJ Installation Time: Less than 1 Hour

        Windo louvers

        Great fit and look. Installing them was easy and directions were complete.

        Helpful (3)
      • November 26, 2018

        4 2001 GT - FrankB

        well worth the money

        shipment was fast as usual, the fit was good not perfect the bottom didn't quite fit, it still looked great it took about 30 mins. still happy will buy again

        Helpful (6)
      • October 04, 2018

        5 2000 V6 - AshtonB

        looks great

        I was looking for something to improve the look of my mustang and this worked perfectly

        Helpful (7)

      Questions & Answers (8 answers)

      5 Top Rated Questions

      Are the louvers open Are the louvers open so dirt will get behind them? If so how will you get the dirt out? Thanks Frank

      • These quarter window louvers are a solid piece with no openings. You shouldn't have any issues with dirt and they look awesome!

      Helpful (4) Show 2 more answers

      Do you guys sell the adhesive separately? I accidentally stuck it on the weather strip so i had to pull it off and it came off.

      • We do not sell the adhesive separately. The adhesive is just going to be your standard auto-grade 3M tape that you can get at really any auto parts store. However if you do have problems with the adhesive, I would suggest calling American Muscle Customer service to see what they can do to help.

      Helpful (0)

      Will it fit a 98 GT??? I understand it says 99-04, but it looks like it will fit as I am doing some serious custom work on mine.

      • Hello! If you are doing serious custom work, then I am sure that you can make these work. However they are only designed for 99-04's and out of the box would only fit on a car in that year range. Thanks!

      Helpful (0)

      will these fit the bullitt

      • Hello! The MMD Quarter Window Louvers do not fit a Bullitt Mustang.

      Helpful (0)

      Do these also fit on the mach 1 and bullitt? The fitment guide list the others of this generation except mach 1 and Bullitt Mustangs does it fit them also or no?

      • Hey Ryan, So these will not fit a bullitt or mach 1 mustang because the quarter window was contoured differently on both of those models. there is a sharper straightened point at the base of the curve on mach 1s and bullitts that is not found on regular GTs and v6s.

      Helpful (0)
      Post Your Question
      3 More Questions
      The passenger side blew off somewhere on the highway, seems silly that I have to buy a complete set for $150.00, any help on this would be great 1 answer
      Blackout? Do you need the blackout, which is an additional $50 underneath in order for it to look clean? 1 answer
      Can you roll down the windows? if your quarter windows roll down, can you install these and still be able to roll your quarter window down? 3 answers

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) driver side louver
      • (1) passenger side louver
      • 3M bonding tape
      • Alcohol wipes
      • Adhesion promoter
      • Instructions

      Tech Specs

      Will It Fit My Mustang

      • Cobra - 99, 00, 01, 03, 04
      • GT - 99, 00, 01, 02, 03, 04
      • V6 - 99, 00, 01, 02, 03, 04

      Does not fit Bullitt or Mach 1 models. Does not fit convertibles

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