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MMD by FOOSE Rear Valance Diffuser (13-14 GT, V6)

Market Price $239.99 You Save 17% ($40.00)
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$199.99 (each)

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  • Item 387427
  • MPN# 387427

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    Features, Video & Details

    • MMD by Foose Rear Valance Diffuser
    • Designed by Chip Foose
    • Aggressive Race Inspired Styling
    • Durable, Lightweight Thermo-Formed ABS Construction
    • Features a Factory Style Grained Texture
    • OEM Fit and Finish
    • Straight Forward Installation
    • Fits 2013-2014 GT and V6 Mustangs

    Review & Installation Video

    Review & Install Video

    Hey, guys. Adam here with americanmuscle.com. Today, I'm bringing you a quick overview and installation of the MMD Tail Light Trim in a matte black finish available for all 2015 and newer Mustangs, excluding the 50th anniversary edition models. So in this video, of course, we'll be going over the styling and appearance you can expect when adding this tail light trim from MMD. I'll even touch on the materials and construction. I'll top the video off with the install, which I'll let you know upfront, gets a very easy, one out of three wrenches on our difficulty meter, simply because this will install using 3M automotive bonding tape. The MMD Tail Light Trim you see here will be for any 2015 or newer Mustang owner who's looking to add a little bit more detail to the rear end of their S550, more specifically, those tri-bar iconic tail lights. And in this case, you're adding a tail light trim that comes in a sleek matte black finish. So I'm sure, most of us can agree that the S550 tail lights is probably one of the most aggressive takes on that tri-bar design, dating all the way back the mid-'60s. Now with that said, some people out there who own the S550 might think that it could use a little bit more detail, just to spice up that appearance. If that's the case, you might be looking into any trim or bezels in the aftermarket world, just to surround that 3D design a little bit more. Now, in this case, in my personal opinion, the matte black finish that MMD has on this particular tail light trim would actually top off that rear-end and give it that little bit of detail that it kind of needs just to make it pop a little bit more. As far as the materials and construction goes, this is pretty straightforward, especially when it comes to these aftermarket trims. You can expect a high quality ABS plastic, something extremely lightweight, extremely durable, something that is somewhat flexible but can take a beating. It's also UV protected, so it's great for the guys out there attending a lot of car shows, using this as a daily driver, something that's parked on the street a lot, is exposed to a lot of sunlight. This thing isn't gonna fade, it's not gonna crack over time. And, you know, MMD is actually pretty known for making quality parts like this for your exterior, so I'm not surprised with this particular construction here. As far as the price goes, if you're interested in picking up the tail light trim from MMD you see here, you can expect to be spending about 150 bucks. Now, in my personal opinion, after holding this, I don't think it's a very bad price at all, especially for the guys out there attending a lot of shows, or even if you're trying to complete an all-out blackout look for your exterior. Now, if you're to get the black paint, the black interior, the black wheels, all you need to do is top off that rear-end to give the tail lights a little bit more black since obviously, they're coming in a red color. Now with that said, 150 bucks and it's yours. My personal opinion, not a bad price at all. And I think with the matte black look, it really adds the detail that the rear-end needs. Now, I'm gonna shift gears over to the install portion of the video. If you're interested in getting this installed on your S550, I want you to know, it installs extremely easily with 3M automotive bonding tape that is provided for you in the kit. Now, 3M automotive bonding tape is a very, very solid adhesive bonding here, so this is something that isn't gonna fall off over time. It'll stay on as long as you want it to, and it's easily removable if you wanna take it off. Now with that said, you're not gonna need any hand tools, any special hand tools at that. The only thing you'll need are the alcohol wipes provided in the kit, just to clean off the area to get a good bonding. Now with that said, you'll be using the alcohol wipes to clean off your factory tail lights, of course, the area all around the tail lights that you'll be applying this to. Once you have that taken care of, you'll use the 3M automotive bonding roll that's included in the kit, you'll cut off little strips, and you'll see on the back here, there are separate spaces here, just to show you exactly where the 3M tape will go. Once you have that stuck in the back of the trim, peel off the backing on that tape, and stick it right into place. Repeat that process for the opposite side, and you're good to go. Overall, I'll say, about 15 to 20 minutes on the install, and a one out of three wrenches on our difficulty meter. Now, just to wrap up this overview and install, guys, if you're the owner of a 2015 or newer S550 Mustang, excluding the 50th anniversary edition, you might be looking to get a little bit more detail for your rear-end of your S550, including those tail lights. So if you are, you might wanna check out the MMD Tail Light Trim in the matte black finish, which of course is available right here at americanmuscle.com.

    Custom FOOSE Styling. Designed by the talented and world renowned custom car builder Chip Foose using the original CAD data from Ford to ensure a precise fit, this MMD by Foose Rear Valance Diffuser will add an aggressive race inspired appearance to your late model 2013-2014 S197 Mustang.

    Quality Construction. Manufactured from OEM quality high impact thermoformed acrylonitrile butadiene styrene (ABS) plastic for superior durability, this MMD by Foose Mustang Rear Valance Diffuser features a factory style grained texture for an OEM appearance and to increase longevity against rock impacts from daily driving.

    Straight Forward Installation. The MMD By Foose Rear Valance Diffuser is simple to install with only minor drilling required. It simply attaches to the factory rear bumper cover using the supplied push pin retainers and 3M doubled sided automotive bonding tape for a straight forward installation.

    Application. This Modern Muscle Design by Foose Rear Valance Diffuser is specifically designed to fit the 2013-2014 GT and V6 Mustang models with the stock rear bumper installed, does not fit Shelby GT500.

    Fitment: 2013 2014 Details

    CA Residents: Warning: California's Proposition 65

    What's in the Box
    • (1) Rear Valance Diffuser
    • (1) Driver side support
    • (1) Passenger side support
    • (4) Push pin retainers
    • Alcohol wipe
    • Adhesion promoter
    Installation Info
    Tech Specs
    Will it fit my Mustang?

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    Customer Photos (68) Submit Your Photo

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    Questions & Answers (10)

    5 Top Rated Questions

    Hi, I have some questions about this product: - Is it needed to have any kind of complex cuts in the car Bumper or just holes? - I have the roush rounded tip exhaust in my car which are a little bit larger than the factory ones, does the product fits the same? - I saw some comments about some part of the difuser that needs to be "glued" with 3M but in some cases it came out again with the exhaust heat, is that common or is just a kind of intallation mistake? (I live in Dubai where the heat sometimes is extreme) - Do i need to take all the bumper out or just a simple car lift is enought to install the product? Thanks for your kind attention.

    • The MMD by FOOSE Rear Valance Diffuser (13-14 GT, V6) does not require any extra cutting or modifications in general, as long as you have the factory bumper installed, the product should retain the same bolt holes as what is already currently attached to the vehicle. The valance itself also can easily fit up to 4.5 inch tips, and even bigger if you get a little creative. As far as the 3M tape, if applied correctly, it will be almost as strong as concrete. However, considering the method of installation involves heating up the glue of the tape to make it malleable, it wouldn't be a bad idea to think of another modification or two, to compensate for the considerable heat of Dubai, just to make sure the valance stays snugly attached. Lastly, while installation may be a little easier with a lift or a jack, it is by no means necessary; you would have zero problems keeping those back wheels on the ground during installation. On top of this, the bumper most certainly can stay attached.

    Helpful (1)

    I own a gt 2014 and i put the Roush round tip axle back ,will this mmd by foose rear valance still fit my gt ? Thank you

    • The MMD by FOOSE Rear Valance Diffuser (13-14 GT, V6) will still fit with the Roush round tips installed.

    Helpful (1)

    Will this valance clear my BFR receiver hitch? Thanks!

    • Unfortunately, we would not be able to confirm fitment for the MMD Diffuser and your receiver hitch.

    Helpful (0)

    Will this accept a 5 inch wide exhaust tip

    • This MMD Valence will not accommodate a 5in exhaust tip they way it is manufacture in production. The max size we would recommend for proper fitment would a 4in exhaust tip.  We have had customers make a 5in tip work on this valence but will be at the installers discretion. 

    Helpful (0)

    Will this rear diffuser help hide some of the Borla Catback tips which stick out a bit to much?

    • The MMD by FOOSE Rear Valance Diffuser will provide a slight increase in tailpipe coverage.

    Helpful (0)
    Post Your Question
    5 More Questions
    If the valance is touching any part of the exhaust tips is that a issue? Like as far as them heating up and all. 1 answer
    Hello I have a kit pype-bomb exhaust 3 inches is that the foose rear valance has enough space for the pypes or is too tight 1 answer
    I have the Roush rear side splitters installed will this fit or will it overlap where I need to drill the holes for the push pins 1 answer
    Will this fit my 2014 gt with the Roush rear side splitters I have installed 1 answer
    I have the track package mustang and my bumper is all in one piece how can I fit this on my car? 1 answer

    People Who Bought This Item Also Bought

    Customer Reviews (95) Write a Review

    Overall Rating 4.3

    out of 5 stars

    Installation Time:Less than 1 Hour

    • Fit 4.311111 4.3
    • Appearance 4.811111 4.8
    • Bang For Your Buck 4.311111 4.3



    • 5/5

      Installation Time: Less than 1 Hour

      September 13, 2018

      The rest of the story

      I ordered this part about 4 to 5 weeks ago. It arrived with literally a giant boot print on the box, and cracked and broken inside. (Awesome UPS! You had one job!) Anyway, I didn't blame AM for it. They assured me the new one was on the way, even before they received the damaged one. After a few days I called and I was told the computer cancelled the order. ? Ok. Unfortunately, the part, once again, was out of stock. So I waited. Sent the old one back. Eventually got the new one, all good. In fact I was considering just taking the refund and buying something else. Glad I didn't. It is exactly the look I was going for on the rear of my 2014 gt. It makes the car appear lower, and wider imo. I really like it. The material is very thin and light weight, but that's what you want, right? So overall the experience required some patience. When you order parts online, these things can happen. AM took care of it. I ended up using a couple screws with big washers in the right location to pull the diffuser up tight. (Along with the plastic push clips) Alone they just didn't seem secure enough to me. Sometimes you have to get creative and employ some enginuity when modifying your mustang. Do what works. I would recommend and buy again. Goes well with the mmd chin spoiler.

      JamesH

      Year: 2014 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      August 13, 2018

      Changed the looks drastically

      I can't believe how much better my Cayote's rear end looks now. It was super easy to install with minimal tools.

      NatanaelC

      Year: 2014 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Afternoon

      July 27, 2018

      Nice looks, poor installation

      I really like this valence. I got it when a muffler shop left one of my axlebacks loose and it melted my stock GT bumper. Since I wasn't in a position to do quads and didn't wan't to cut it for a Boss valence, I went with this. The fit is OEM, it blends in with all the other black trim on the car. If you just install it with the supplied tape and push pin it does not hold snug to the car. A bodywork friend of mine added a few hidden rivets and more mounting tape to get it seamless. Once you have it on snug, it looks awesome and people aren't sure what's going on because it's not the Boss one like they expect. Do make sure you have tail pipes on the longer side, as this will make them look stubby.

      astronut1885

      Year: 2013 Submodel: GT

      Helpful (1)

    • 3/5

      Installation Time: Afternoon

      July 26, 2018

      Foose valance

      Valance itself is a good design and very good quality. Support tabs are useless. My particular valance did not even have 3m tape applied to the tabs, nor did it come with instructions. In the package were instructions for the MMD decklid panel... After buying my own 3m tape and reshaping the support tabs, the valance fits fairly well. Makes a huge difference to the rear of the car. Overall not the best experience after spending $200..

      RobE

      Year: 2014 Submodel: V6

      Helpful (3)

    • 4/5

      Installation Time: Less than 1 Hour

      July 24, 2018

      MMD Foose rear diffuser

      It's awesome I really like it my co.workers likes it and the diffuser stands out real good. I'm happy thank you American Muscle.

      CharlesE

      Year: 2013 Submodel: V6

      Helpful (2)

    • 3/5

      Installation Time: Less than 1 Hour

      July 09, 2018

      MMD rear diffuser

      Looks good but the attachment tabs above the exhaust are a terrible idea!. Hangs down and you can see the supports above each exhaust tip. Instructions and video are terrible. Very important part of install with the least info about it. Doesn't fit very well at all. I would have not purchased this item knowing it now.

      CharlesS

      Year: 2014 Submodel: V6

      Helpful (4)

    • 5/5

      Installation Time: Afternoon

      June 18, 2018

      Fast Gt

      The Foose diffuser looks very professional and the style ahead of the competition. The install was ok except for the additional support pieces that attached to the rear fascia. Gives the car finished look

      JimW

      Year: 2014 Submodel: GT

      Helpful (3)

    • 4/5

      May 26, 2018

      Glue doesnt adhere tightly

      Had to drill holes in the center underneath and put more plugs to snug it up better because the glue just doesnt make a strong bond due to the curves of the diffuser. Once i snugged it all up, it stayed put. Killer look.

      Bushguts

      Year: 2013 Submodel: GT

      Helpful (4)

    • 4/5

      Installation Time: Less than 1 Hour

      May 24, 2018

      gaps

      It is impossibe to install with 3m tape without seeing gaps. It looks real good on a red mustang though.

      frankc

      Year: 2014 Submodel: GT

      Helpful (3)

    • 3/5

      Installation Time: Afternoon

      May 02, 2018

      Good and bad

      Looks great from a distance. Though it was a torture for me when I installed it. As some people mentioned, it’s not a perfect fit because there are some bad gaps between the diffuser and the bumper from the corners. Finally, it looks great if you don’t focus much about details

      RakanA

      Year: 2014 Submodel: V6

      Helpful (3)

    • 5/5

      Installation Time: Less than 1 Hour

      April 19, 2018

      Low cost high impact

      I was looking for a way to set my 13 GT apart from all the other ponies on the road but didn’t want to do any cutting. The MMD diffuser fit the bill. Install was easy just go slow and make sure everything in clean. The adhesive promoter is no joke it really helps the diffuser stay in place, I was surprised at how sturdy it is once installed. Highly recommend this product.

      DarkHorse0746

      Year: 2013 Submodel: GT

      Helpful (4)

    • 5/5

      Installation Time: Less than 1 Hour

      April 11, 2018

      Highly recommend!

      Be sure to properly place the left and right tabs. If you don’t the tape won’t adhere to the bumper and you may have a slight gap. Other than that, great product. Really changes the look of the rear of the car!

      FredR

      Year: 2014 Submodel: GT

      Helpful (4)

    • 5/5

      Installation Time: Less than 1 Hour

      April 11, 2018

      Really happy I bought it

      Simple install and the thing looks incredible. Was on the fence when I bought it but I'm glad I did, really changed rear of the car. Like others have mentioned the two supplied tabs aren't the best design but they really don't hinder the install. I think for looks this ranks just behind the Roush chin splitter but ahead of the Roush side splitters (I have all 3).

      JamesM

      Year: 2014 Submodel: GT

      Helpful (5)

    • 5/5

      Installation Time: Less than 1 Hour

      April 04, 2018

      Great edition to any Mustang

      MMD by Foose rear valence is a great edition to any Mustang. This part honestly looks like it should be on the car. It pulls the rear of the car together and gives it the style that I thought all S197's should come stock with

      JasonM

      Year: 2014 Submodel: V6

      Helpful (4)

    • 5/5

      Installation Time: Less than 1 Hour

      March 12, 2018

      New Look!!!!

      I think its a little bit overprice but I got it new in a very cheap price. So, I don't have to worry. It gives the awesome look. And now i'm going to paint the lines in red. More aggressive look. See my photo.

      Ali13ConV6

      Year: 2013 Submodel: V6

      Helpful (6)

    • 5/5

      Installation Time: Less than 1 Hour

      March 04, 2018

      Rear Valance

      Easy install. Love the look. It took less then an hour to install and there was no cutting involved.

      MartinC

      Year: 2013 Submodel: GT

      Helpful (4)

    • 4/5

      Installation Time: Afternoon

      February 07, 2018

      Nice piece, but frustrating.

      This diffuser looks great once all done, but plan on taking your time, follow the instructions closely, and have an extra set of hands when placing it on your car. This would be 5 stars if not for the tabs. These really need to be part of the diffuser, not separate pieces. Because of that it adds some difficulty when trying to fit it cleanly to the car.

      LarryR

      Year: 2013 Submodel: GT

      Helpful (5)

    • 2/5

      Installation Time: Less than 1 Hour

      February 06, 2018

      Don’t

      The fit and the souport are not good ................

      WilmanZ

      Year: 2014 Submodel: V6

      Helpful (4)

    • 5/5

      Installation Time: Afternoon

      January 12, 2018

      Finished the look i was going for

      Fit and finish was great. Works well with side/rear splitters. Gives the rear end that racy by not ricey look.

      Mike

      Year: 2014 Submodel: GT

      Helpful (5)

    • 1/5

      January 11, 2018

      MMD by Foose Rear Balance Diffuser

      Looks great on car once installed properly. Material supplied poor. Leaves diffuser flimsy like it will fly off car. Not worth the price considering the moderate time , added expense and material in need to make it safe and secure with no extra damage to vehicle About an hour still to install with proper material.

      JohnS

      Year: 2014 Submodel: GT

      Helpful (5)