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How to Install MMD Classic Quarter Window Louvers - Pre-Painted on your 2010-2014 Mustang

Installation Time

30 minutes

Tools Required
  • Window Cleaner
  • Lint free paper towels
American Muscle
Shop Parts in this Guide

1. Before beginning, thoroughly clean the quarter windows to make sure they are clean and free of any dirt or contaminants. You will not be able to remove these louvers to clean these windows in the future, so now’s your last chance.

2. It is a good idea to practice “dry fitting” the louvers to your car, so you understand which one fits on which side. While doing this you will notice that the louver edges drop down into the valley around the window and there is a little bit of room top to bottom and side to side, you want to get a good feel of where you are going to place it so it looks even all around. Now would be a good time to practice step 7.


3. Using the supplied alcohol prep pad, wipe down the mounting points on the louver as well as the outside of the quarter window where the louvers will adhere.
***Only use one alcohol pad per side***
4. Using the supplied 3M Adhesion Promoter Pad, thoroughly wipe down the mounting points on the louver as well as the outside of the quarter window where the louvers will adhere.
***Only use one Adhesion Promoter Pad per side***


5. Touching only the edges of the 3M tape, place it on the louvers’ 6 mounting points as shown.



6. Peel the backing from the 3M tape.


7. Starting with the rear most portion hook the louver in the valley between the glass and the body, DO NOT PRESS DOWN, you do not want to seat the tape yet. Now tilt the top edge downward and into place following the line of the windows until it looks even then pivot the louver downward over the quarter window.



8. Once the louver is properly positioned around the quarter window, firmly press down around the entire edge of the louver to fully seat the adhesive.


9. Repeat Steps for opposite side louver to complete the installation.


This guide applies to Vehicle years: 2010, 2011, 2012, 2013, 2014 and Submodels: Boss 302, V6, GT, GT500