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MMD Radiator Extension Covers (15-17 GT, EcoBoost, V6)

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Market Price $149.99 You Save 13% ($20.00)
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$129.99 (kit)

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  • Item 398225

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    Features, Video & Details

    • Sleek Custom Under Hood Appearance
    • ABS Plastic Construction
    • Textured Matte Black Finish
    • Simple Installation
    • Fits 2015-2017 V6, EcoBoost and GT Mustangs

    Review & Installation Video

    Review & Install Video

    Custom Show Car Styling. Give your S550 Mustang a sleek custom under hood appearance with a set of MMD Radiator Extension Covers. These Radiator Extension Covers are a great and simple way to hide the unfinished appearance of your Mustang's engine bay.

    High Quality Construction. Manufactured from high quality acrylonitrile butadiene styrene (ABS), these MMD Radiator Extension Covers were designed using the original OEM CAD data from Ford to ensure a perfect fit. ABS is an extremely strong material that is known for its durability and heat resistance - making it ideal for use under the hood of you Mustang.

    Simple Installation. MMD's Radiator Extension Covers are designed to attach with the supplied push pins and 3M doubled sided automotive bonding tape for a quick and easy installation. No drilling or permanent modifications are required.

    Application. These MMD Radiator Extension Covers are designed to be a perfect fit on 2015-2017 V6, EcoBoost and GT Mustang models. Sold as a set of two, one driver side and one passenger side.

    Modern Muscle Design

    Fitment: 2015 2016 2017 Details

    MPN# 398225

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

    What's in the Box
    • (1) Left Extension
    • (1) Right Extension
    • (2) Large Push Clips
    • (2) Small Push Clips
    • (2) Alcohol Wipes
    • (2) Adhesion Promoter Packets
    Installation Info
    Will it fit my Mustang?

      Customer Photos (100+) Submit Your Photo

      View All 100+ Photos

        Questions & Answers (30)

        5 Top Rated Questions

        Will this fit 2015 GT mustang with an airaid box installed?

        • The MMD Radiator Extension Covers will have no issues working with the Airaid Cold Air Intake.

        Helpful (6)

        Why doesn’t this product available in Australia

        • Due to restrictions set by our third party shipping partner I-Parcel, some items are unavailable for international shipment.

        Helpful (2)

        When is MMD planning on making a version that will fit the 2018/2019 models?

        • At this time, we do not currently have an update on if this part will be available for the 2018/2019 Mustang models.

        Helpful (1)

        Will these MMD Radiator Extension Covers work on a 2018 Mustang GT?

        • The MMD Radiator Extension Covers have not yet been tested on 2018 models. Fitment will be updated once testing has been completed.

        Helpful (1)

        Will this fit a 2015 V6 Mustang with an Roush Cold Intake (P/N 421828) installed?

        • You should not have any fitment issues with that intake installed.

        Helpful (0)
        Post Your Question
        10 More Questions
        Does this set up high and cause paint damage under the hood? 1 answer
        Repeat question but any word on whether these will be developed for the 2018 GT? 1 answer
        Will these fit along with the radiator cover you sell for 2017? The Ford Performance cover? 1 answer
        Does the manufacturer ever plan to release a 2018 version? 1 answer
        Will this work with the C L CAI? 1 answer
        Will they fit with a JLT CAI Box? 1 answer
        Are these available painted to match factory colors 1 answer
        Will this be compatible with a Hellion twin turbo kit? I’m trying to hide the empty space near the relocated coolant tank. Thanks 1 answer
        2016 Eco-boost, will these covers work with the C L CAI? 1 answer
        Will this fit a 2016 GT with a Stage 1 Roush Supercharger 1 answer

          Customer Reviews (100+) Write a Review

          Overall Rating 4.6

          out of 5 stars




          • 5/5

            August 20, 2019

            Very clean

            Love this item. It cleans up the engine compartment.

            MonsterMarine

            Year: 2016 Submodel: GT

            Helpful (0)

          • 5/5

            August 18, 2019

            Small Mod but BIG appearance change

            Gives the engine bay a finished, factory look. Highly recommend.

            MarkS

            Year: 2017 Submodel: GT

            Helpful (0)

          • 3/5

            August 09, 2019

            Won’t work with aftermarket hood

            I have a cervini hood and the fitment is off, the aftermarket hood has different bracing that hits causing the hood not close properly. Looks amazing wish it worked, starting return now.

            Whipple15

            Year: 2015 Submodel: GT

            Helpful (0)

          • 3/5

            August 04, 2019

            Good quality fit could be better

            Original order came with two left side panels, kinda hard to make that work. They were quick to send out a replacement and install was easy. They DO rub on the underside of the hood in several spots I put small clear rubber bumpers on the hood and that eliminated the rubbing but not before it took the paint off.

            MarkV

            Year: 2016 Submodel: GT

            Helpful (0)

          • 4/5

            July 02, 2019

            Radiator Extensions

            I really like how the Radiator Extension Covers give the look of the Engine Bay being clean. The only draw back is they sit a little high so I have to take them off when closing the hood, otherwise they wear off the paint of the hood where it hits the extensions.

            Shinny

            Year: 2017 Submodel: GT

            Helpful (0)

          • 5/5

            June 27, 2019

            Great Covers at reasonable cost!

            These covers should come from factory, looks great!

            FrankD

            Year: 2016 Submodel: GT

            Helpful (0)

          • 5/5

            June 17, 2019

            MMD Radiator Extensions

            Exactly what I was expecting. Really cleans up the engine bay!

            NateG123

            Year: 2017 Submodel: EcoBoost

            Helpful (0)

          • 5/5

            June 16, 2019

            #15BLACKMAMBA

            great finish look to the under hood of your ride. easy to install with just a couple of push pins

            MikeW

            Year: 2015 Submodel: GT

            Helpful (0)

          • 5/5

            June 12, 2019

            Completes the “Look”

            Well worth the cost, should have been included from the factory. Makes the engine compartment appear finished, rather than thrown together.

            Whizkidder

            Year: 2017 Submodel: GT

            Helpful (0)

          • 5/5

            June 03, 2019

            Clean look..

            This is a must have if you like a clean look for the engine bay...recommended you get the strut covers as well looks great..

            1fastroush

            Year: 2015 Submodel: GT

            Helpful (0)

          • 5/5

            May 31, 2019

            Wow

            Really added a finishing touch to my engine bay and to top it off I added blue led tubes underneath looks great

            BigJoe

            Year: 2016 Submodel: GT

            Helpful (0)

          • 5/5

            May 28, 2019

            Great finished look

            Easy to install looks factory. Nice under hood touch.

            nicnhlfan

            Year: 2015 Submodel: GT

            Helpful (0)

          • 4/5

            May 21, 2019

            18 test fit

            I really ordered these to get an idea why the description stated only 15-17. No one was really able to give me a solid answer as to why these wouldn’t, so I bought a set. I can now confirm they “may” fit an 18 with a 15-17 front radiator shroud and some drilling to the extension panels... but these are not nor will not drop into place on an 18 . However, quality was good, shipping was fast and packaged well as to not damage the items. Felt as they were the same quality as the OEM front radiator cover to give an idea of feel and look.

            MMD

            Year: 2018 Submodel: GT

            Helpful (0)

          • 5/5

            May 20, 2019

            Great finishing touch!

            Installed teh extensions and it gave the engine compartment a finished look. love it!

            CarrolR

            Year: 2015 Submodel: GT

            Helpful (0)

          • 5/5

            May 11, 2019

            Radiator extension cover for my 15

            I love my cover, it tuck me no time to put them on about 10 m

            EddieC

            Year: 2015 Submodel: GT

            Helpful (0)

          • 5/5

            May 07, 2019

            Engine dress up covers

            Wow these covers fit great. It only took 20 minutes to install. And it really dresses up the engine compartment. Kash W

            KashW

            Year: 2015 Submodel: GT

            Helpful (0)

          • 5/5

            May 07, 2019

            Easy install.

            Great fit and looks nice with other engine dress up parts.

            Mike

            Year: 2015 Submodel: GT

            Helpful (0)

          • 5/5

            April 27, 2019

            Good fit, easy install

            Easy mod to help fix the awful stock engine bay's on the 5.0's takes 3-5mins to install max.

            BandysS550

            Year: 2017 Submodel: GT

            Helpful (0)

          • 1/5

            April 21, 2019

            If you don't mind the rubbing against the hood...

            Not really thrilled with these. They do make the engine bay looks much nicer/cleaner. But they didn't do a good job engineering these to avoid contact with the hood. As you can see in my photos, there are several spots where it rubbed the paint off hood and caused defects in the covers. They should have included rubber pads to place on the hood in these key spot. Next, I had to remove them for some work and the "pins" that secure them, the smaller ones, the tops popped off. So now they are broken and I can't reinstall the covers until I can replacement pins.

            CIASpook

            Year: 2015 Submodel: V6

            Helpful (1)

          • 3/5

            April 19, 2019

            Engine cover extension

            Piece looks nice but does not hold great following directions on how to install but the one clip provided holds okay but the clip from on original place in car and instructed to put in new slot does not hold correctly. Now I have to go to ford to purchase a bigger longer clip to fasten it down for both covers I purchased

            Jmustang

            Year: 2015 Submodel: GT

            Helpful (0)