(approx) 15 Minutes
Simple installation for anyone.
$218.47 (pair)FREE Shipping
Hey guys, today we're gonna be taking a look at and installing the Defenderworx quarter window louvers, for all 2015 to 2018 Mustangs. These are an unpainted polyurethane quarter window louver with a matte black finish. They cost about $200 and you can see they have a very stepped louvered design. They give you a little bit of a different look than some of the other options on the website. Like any other exterior mod, these are all about personal styling. You can install them right out of the box with the matte black finish or they're also very easily paintable, so you guys can paint them if you want to. They're easy to install, I'll call it a one out of three wrenches in the difficulty meter and I'll show you how we got them on the car now. All right guys, so the first step of our install is actually gonna be to flip the louver over. We're gonna apply some adhesive promoter to the flat edge all the way around the louver here and then we're going to apply the 3M tape. So I have a pair of scissors here so I can cut the tape when I need to. We're gonna go ahead right now and get the promoter on the louver before we apply the 3M tape. So we're just gonna apply the 3M tape on the flat surface of the louver here. We're gonna leave the backing on it for now. All right so we do wanna make sure that none of this 3M tape hangs over the edge of the louver because you will be able to see it. All right, I'm just gonna fill in this space right here with a smaller piece of tape just because I do wanna make sure I get as much 3M on here as possible. So with the 3M on the back of the louver, we're actually gonna flip it over now. And once again these are very lightweight and they do come with this matte black finish. They're very easily paintable, so you guys can paint match these if you want to or you can install them right out of the box with a matte black finish like we're gonna do today. So you do get two stickers from the Defenderworx. They're right here and I will say that if you're gonna paint match yours and you wanna put the stickers on, make sure you do it after they're painted. We're gonna go ahead and just stick one of these stickers up in the corner right now before we get this on the car. So at this point we're actually gonna test fit the louver before we peel the backing off the 3M tape just so we're really familiar with where it's gonna go and how it's gonna sit on the window before we go to actually install it. Another thing to say here is that you're gonna wanna make sure your window is as clean as possible. So you're gonna want to use an alcohol prep pad or anything that'll cut through any grease or wax that could be on the window. We've already gone ahead and cleaned our window. One other thing to point out is this is a louver design, so you guys can see that you will be able to see or have some light come through this louver on the new rear quarter window here. If you guys don't wanna see the unfinished backing of your louver or you don't want that light coming through, make sure you pick up a quarter panel blackout decal and install that prior to installing your louver. So we're gonna go ahead, test fit this on the car and just get a really good idea where it's gonna be. So before we go ahead and get the louver installed, we're gonna use 3M adhesion promoter on the window as well. We're only gonna be putting it where the 3M tape is gonna sit. We're gonna go ahead, just make a line around our window. Now we're gonna peel the backing off the 3M tape. Now we'll just press this into place. Gonna want to make sure that you are perfectly lined up because with the adhesion promoter on the glass the 3M tape's gonna stick right away. So now I'm just gonna go around the entire louver and make sure it's pushed into place. One of the nice things about these louvers is they apply to the glass so they're gonna leave your quarter window trim exposed. All right guys, that's gonna wrap up this review and install. Keep in mind you can always check these out more online right here at americanmuscle.com.
Subscribe to our YouTube Channel
Features, Description, Reviews, Q&A, Specs & Installation
Fitment: 2015 2016 2017 2018 2019 2020 Details
CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
January 05, 2020
I have no complaints about the product I purchased! They shipped in a timely manner and I had them painted right away so I could put them on the Mustang! I will continue to shop with American Muscle!Helpful (0)
August 28, 2019
Install was easy and quick, they look great and they are high quality.Helpful (1)
June 03, 2019
Overall I was impressed with the look and quality of these louvers. I'd rate them five stars if not for a minor fitment issue on the front bottom edge which might be specific to the Bullitt due to the chrome window reveal molding. (I had to lightly sand about 1/16" off from the bottom front edge back about 2 1/2" to get the louver to lay flat against the glass without binding.) Be aware that these louvers are designed to be painted. I sprayed them with a flexible/sandable primer surfacer followed by acrylic urethane, three coats of base four coats clear, then color sand hand buff. It takes a little time to do it right but it's worth it.Helpful (1)
April 04, 2019
Adds a nice, aggressive look.
I was looking at multiple different styles of louvres and finally settled on these. I’m glad I did. Material is nice and install is simple. Complete install took about 15-20mins. Couldn’t be happier with the purchase.Helpful (0)
March 16, 2019
The design is great and I like the idea you can see between the vents. I was not too happy on the out of the box flat finish. They look like they need painting. Sturdy construction, not too flimsy. All in all they look radical on my 5.0. For a price of over $200.00 they could have a least put a nice coat of flat black on them.Helpful (0)
January 27, 2019
It fit perfect and looks great love it. It came in like they said in 3 days. That's why I sway use American muscle.Helpful (2)
January 02, 2019
Quarter Window Louvres
I just installed these louvres last night and they fit perfectly! I ordered the matte black and they look great with the matte black trim. Installation was quick and easy. This is the second set of Defenderworx louvres I’ve purchased and it’s a great product.Helpful (2)
November 06, 2018
Love the Louvers
Good product, well constructed and looks great and I can still see out the side windows. Easy to install as long as you make sure your tape is positioned properly.Helpful (2)
July 28, 2018
The looks say it all. I was able to install the louvers in no time flat, 15 minuets for each side.Helpful (2)
July 01, 2018
Love these Louvers
Good product, good fit, and overall appearance is awesome at completion of the install.Helpful (2)
Are there drain holes to handle car washing and rain water?
Water will drain naturally, due to the shape/angle of the louvers.
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.
I'm Looking for a textured ABS style quarter window louver to match the MMD rear window louver. Do these have a little bit of a textured surface like the factory exterior black plastic trim pieces on the car or are these a smooth surface? Thanks-!
Are these louvers paintable?
The Defenderworx Quarter Window Louvers are able to be painted, however prep, sanding, and primer will be required.
(approx) 15 Minutes
Simple installation for anyone.
What's in the Box