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MMD GT350 Style Upper & Lower Grille Extensions (15-17 GT)

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Market Price $172.49 You Save 13% ($22.50)
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$149.99

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  • Item 393900

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    Features, Video & Details

    • Aggressive GT350 Inspired Styling
    • Factory Style Matte Black Finish
    • Durable, Injection Molded ABS Construction
    • Super Easy Peal and Stick Installation
    • Fits 2015-2017 Three Window GT Grilles Only

    Review & Installation Video

    Review & Install Video

    Hey, guys. Stephanie with americanmuscle.com here with a review and install of the MMD GT350 STyle Upper and Lower Grille Extensions for the 2015 and newer S550 GT Mustang. In this video, we're gonna go over a few different topics with these grille extensions. We're gonna talk about the styling of these, the materials and construction, and the install as well. I'll go into more detail later, but I can tell you right now that the install for these is an easy one. It's a one out of three wrenches on the difficulty meter. The MMD GT350 Style Upper and Lower Grille Extensions are going to be something that you should check out if you're looking for a way to change the front-end appearance of the S550 GT, but you don't necessarily wanna shell out the cash for a complete new upper and lower grille setup since that can get expensive fast, or you don't wanna completely revamp your grilles. This would also be a good option for you if you're after adding some of that GT350 style to your Mustang. They're not gonna fit the 50th anniversary or the base model grilles. These grille extensions are just added to your factory grille, and MMD designed them to give a very close appearance to the GT350 grille. Now it isn't gonna look exactly the same, but you'll still get that very similar appearance. You're also changing the looks of the front-end of your car in a very simple, very easy, and also reversible way. That's the beauty of these, in my opinion. They're so simple, yet they do make a difference in looks, and you don't have to spend an arm and a leg or go with a completely after-market grille. You're getting both upper and lower grille extensions with this little kit here so that you can complete the look. These are made from ABS plastic, which is commonly used for exterior styling because it's lightweight, strong, and durable, and these are all good qualities for an item that's gonna be living on the front of your car. These are gonna come with everything you'll need to get them installed. Like I said, a big plus here is that they're very easy to install. They install with just 3M tape, that's already on the backside of the extensions so you don't even have to worry about placing it. They're also gonna come with alcohol wipes and adhesion promoter so you can make sure that you get a good bond. When it comes to price, you can expect to pay right about the $150 mark, which is less than half the price of any other grille option that you have. As far as the install, if you wanna even call it an install, it's very easy. It's a 1 out of 3 wrenches on the difficulty meter, and you can expect to spend 15 minutes to get these installed. You won't need any tools, but you are gonna wanna make sure that you have a clean surface and that you test fit the extensions before installing. And they are side specific, so just make sure that you have the correct sides ready. Once you have the grille clean, use the alcohol prep pads to prep the grille where the 3M will be. Then use the adhesion promoter after you peel the backing off the 3M tape, and allow it to dry. Then it's just a matter of firmly pressing the grille extensions onto the grille using even pressure. I would just keep in mind allowing these to set on the car before you wash it or take the car in the rain. Wrapping things up here with the MMD GT350 Style Upper and Lower Grille Extensions, these offer a fast and easy way to change up the looks of the front-end of the S550 GT without having to purchase an entirely new grille replacement. They will give your Mustang a touch of the GT350 styling. They allow you to keep the factory grilles, and you can check them out more online right here at americanmuscle.com

    Aggressive GT350 Inspired Styling. Totally transform the exterior appearance of your 2015-2017 GT Mustang with a set of Modern Muscle Design GT350 Style grille Extensions. These MMD grille Extensions were designed to easily allow your GT's three window grille to closely mimic the aggressive styling of the Shelby GT350's grille.

    Quality Construction. These Modern Muscle Design GT350 Style grille Extensions are designed using the original OEM CAD data from Ford to ensure a perfect fit. Both the upper and lower Extensions are manufactured from an OEM quality injection molded acrylonitrile butadiene styrene (ABS). ABS is an extremely strong material known for its light-weight, superior durability and impact resistance - making it perfect to withstand the hazards of daily driven vehicles.

    Easy Peal and Stick Installation. MMD's GT350 Style grille Extensions are super easy to install and installation can be completed in less then 15 minutes. Thoroughly clean the surface and then simply peel the 3M doubled sided automotive bonding tape from the back and set firmly in place. It is that easy.

    Application. These Modern Muscle Design GT350 Style Upper and Lower grille Extensions are designed to fit all 2015-2017 GT Mustangs equipped with the factory three window style grille. These MMD Extensions will not fit 50th anniversary or base model grilles.

    Modern Muscle Design

    Fitment: 2015 2016 2017 Details

    MPN# 393900

    CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

    What's in the Box
    • (1) Left Upper Extension
    • (1) Right Upper Extension
    • (1) Left Lower Extension
    • (1) Right Lower Extension
    • (2) Alcohol Wipes
    • (2) Adhesion Promoter
    Installation Info
    Will it fit my Mustang?

      Customer Photos (59) Submit Your Photo

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        Questions & Answers (26)

        5 Top Rated Questions

        Hey, I have 2015 ecoboost premium mustang and already installed with RTR grilles. Wondering this products will fit on my RTR grilles? Thks.

        • This will not work with the RTR grille.

        Helpful (2)

        I take that these WILL fit a 2017 GT base model ?

        • The MMD GT350 Style Upper & Lower Grille Extensions will work with the base model 15-17 GT models with the factory three window style grille.

        Helpful (1)

        Do these only work on the stock grille? Was wondering if they would fit on the RTR one.

        • Hello! The MMD GT350 Style Upper & Lower Grille Extensions is only designed to work with the factory GT grille

        Helpful (1)

        how would there NOT fit a base v6? I mean, if you just tape them in, I'm sure they could fit, even if you modify them. Make more stuff for V6!

        • The MMD GT350 Style Upper & Lower Grille Extensions do not fit the V6 Model S550 due to the grilles being a different dimension.

        Helpful (0)

        Why will they not fit a base model grill?

        • This will only work with the OEM three window style grille. Unfortunately the base models do not come equipped with that style grille.

        Helpful (0)
        Post Your Question
        10 More Questions
        I have a base model 2016 and my grill has the 4 pillers in the grill (2 upper),2(lower) like in this photo...what gives? 0 answer
        What exactly is a 3 window grille.?.I haven't noticed any difference in the grilles of any 15-17 base or pp models except the gt350. 1 answer
        This will fit on the Cervinis C Series grille both upper and lower? 2015 Mustang GT PP 1 answer
        Can these be used to replace broken extensions on the mp concepts gt350 style bumper? 1 answer
        I Have A 2015 Mustang GT. (Base Model) . Will These Fit On The Grille? Read It Wont Fit Base Model Grilles. 1 answer
        Are these grill extensions paintable ? 1 answer
        Don't these extensions fit the Ecoboost, do they? I really want to mine. 1 answer
        Will this fit on a rtr upper grille with led lights? 1 answer
        I have a 2016 Ford Mustang V6 with the GT 3 window "fang" upper and lower grille. I did a grill delete, will these extensions work or do you need the honeycomb grill to make it work? 1 answer
        Will these work with the California Special edition of the 2017 GT? I want to make sure they won't interfere with the off-center tri-bar Mustang logo. 1 answer

          Customer Reviews (43) Write a Review

          Overall Rating 4.5

          out of 5 stars

          Installation Time:Less than 1 Hour

          • Fit 4.619048 4.6
          • Appearance 4.857143 4.9
          • Bang For Your Buck 4.190476 4.2



          • 1/5

            July 10, 2019

            Kept Sending Wrong Part

            Ordered the grill extension. First shipment had rear diffuser fins but with grill extension instructions. Returned and AM sent a new package. Same thing showed up....diffuser with grill extension. Returned for money back. I would love these extension but got tired of going to UPS to return.

            DaveS

            Year: 2017 Submodel: GT

            Helpful (0)

          • 1/5

            July 08, 2019

            Extensions

            I returned what they sent. They did not fit the pp gt...they were to narrow more like parklight splitter. What I recieved was not wide like what's advertised.

            PJ

            Year: 2015 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            May 23, 2019

            Love the look

            Love the look. Over priced as usual for MMD plastic.

            Tutt

            Year: 2016 Submodel: GT

            Helpful (1)

          • 5/5

            Installation Time: Less than 1 Hour

            May 14, 2019

            Nice

            They look great. Bit expensive. Super easy install. Recommended.

            Murguero

            Year: 2017 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            May 13, 2019

            Fit Surprisingly Well and Stay On!

            I purposely waited awhile to leave this review because I thought for sure that these extensions would eventually fall off. But it's been about a year now and after numerous trips through the automated car wash, to my surprise they're still on! Just be sure to follow the instructions exactly and you can't lose. All four are still very solid after a year of Texas weather. Look much better in person. I would definitely purchase them again!

            JamesP

            Year: 2017 Submodel: GT

            Helpful (1)

          • 3/5

            Installation Time: Less than 1 Hour

            April 20, 2019

            Looks Good.

            But the 3m tape on the lower right side is already getting weak. Ill have to reorder or get some 3m glue to hold it in place.

            JoeR

            Year: 2015 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            April 01, 2019

            Simle yet effective...

            Easy install...makes the casual walker-by do a double take. Gives the front end that little bit of aggressiveness over a stock GT to stand out...

            Pete

            Year: 2017 Submodel: GT

            Helpful (1)

          • 5/5

            Installation Time: Less than 1 Hour

            January 24, 2019

            Nice subtle aggression...

            Best addition to a GT OEM grill. Subtle aggressive change without an aggressive price. Would buy them again.

            JohnW

            Year: 2017 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            January 17, 2019

            easy install with killer looks

            looks great, adds that GT 350 aggressive edge/look but bit expensive.

            RockyQ

            Year: 2016 Submodel: GT

            Helpful (0)

          • 4/5

            Installation Time: Less than 1 Hour

            December 17, 2018

            Wow

            Like other products of MMD it appears like a OEM part. Cool front look, better than stock look special for EU specs Mustangs. But like other products of MMD is very expensive. Happy with my purchase!

            DiegoG

            Year: 2016 Submodel: GT

            Helpful (2)

          • 5/5

            Installation Time: Less than 1 Hour

            December 13, 2018

            Grille extensions

            This product is a super easy install and really good quality. It also adds an aggressive look in the front! I’m in love with my front end now

            DanielF

            Year: 2015 Submodel: GT

            Helpful (1)

          • 5/5

            Installation Time: Less than 1 Hour

            December 09, 2018

            MMD GT350 Style Upper Lower Grille Extensions

            Great product, fast shipping and makes your Mustang front end look more aggressive! Well worth the price.

            GSquared

            Year: 2016 Submodel: GT

            Helpful (1)

          • 5/5

            Installation Time: Less than 1 Hour

            November 09, 2018

            Bumper Cover Upgrade

            Great cheap addition to the grill !! I recommend this part as it brings more of an aggressive look

            WhiteStang

            Year: 2016 Submodel: GT

            Helpful (5)

          • 5/5

            Installation Time: Less than 1 Hour

            November 06, 2018

            Aggresive look a little reminiscent of a GT 350

            Nice addition to the front end to give it a little more aggressive look. The four pieces were properly injection molded and not flimsy.at all. The 3M tape holds very well, make sure to use the provided adhesion promoter prior to the install. At the same time added Ford's blacked out pony to the grille to complete the look. Happy with the new look, two thumbs up!

            RobertL

            Year: 2017 Submodel: GT

            Helpful (4)

          • 4/5

            Installation Time: Less than 1 Hour

            October 15, 2018

            Fangtastic

            Fits excellent. A little pricey but a really nice touch. I had to re-do the driver side as it was a little loose so I removed it and got some more 3M tape and some more adhesive promoter and this time it held tight.

            HeatherK

            Year: 2017 Submodel: GT

            Helpful (4)

          • 5/5

            Installation Time: Less than 1 Hour

            October 03, 2018

            Subtle but nice!

            Adds a slightly aggressive look to the front end. I like how it looks 99 factory. Nobody but you will be able to tell that it’s not from the factory. Super easy install that’s not going to damage your car if you decide to remove them.

            KevinS

            Year: 2017 Submodel: GT

            Helpful (5)

          • 5/5

            Installation Time: Less than 1 Hour

            September 25, 2018

            Nice Change

            Very nice look, easy install. Changes front end. I'm pleased.

            Danny

            Year: 2017 Submodel: GT

            Helpful (4)

          • 4/5

            Installation Time: Less than 1 Hour

            September 02, 2018

            Hella Cool

            They make the normal gt front super aggressive from all angles. A tad pricey I'd say honestly. Like its 140 4 platic bits and some tape but it looks great. Gives it a much more a snake type of look in the front. Like literally 5mins install. And they stick well. Car washes and everything.

            HunterL

            Year: 2016 Submodel: GT

            Helpful (3)

          • 5/5

            Installation Time: Less than 1 Hour

            August 15, 2018

            A Must have.

            Great item, Very easy to fit, Nice touch without looking aftermarket. Fitted in minutes. Being a European speck car I did have to change my lower grille. But it's well worth it. £60 for a lower grille from Ford UK, Then £160 with postage to the UK for the extensions.

            KevDawnsUKMustang

            Year: 2017 Submodel: GT

            Helpful (4)

          • 5/5

            Installation Time: Less than 1 Hour

            July 19, 2018

            Grill extensions

            Easy to install and the fit is perfect. Adds just a touch of ' not stock ' to the front end. 10 minutes to put on.

            StevenV

            Year: 2017 Submodel: GT

            Helpful (5)

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