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MP Concepts GT350 Style Rear Bumper & Diffuser Kit - Unpainted (15-17 All)

Market Price $799.99 You Save 28% ($222.00)
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  • Item 397417

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    Features, Video & Details

    • Intimidating Shelby GT350 Inspired Styling
    • Rear Fascia Kit
    • Not Prepped for Backup Sensors - No Pre-drilled Holes
    • Constructed from Durable OEM Quality Polypropylene
    • Includes Premium Style Rear Fascia and Lower Diffuser
    • Straight Forward Installation
    • Ships Unpainted
    • Fits All 2015-2017 Mustangs

    Review & Installation Video

    Review & Install Video

    Intimidating Shelby GT350 Styling. Revamp the exterior styling of your S550 Mustang with this GT350 Style Rear Bumper and Diffuser Kit from MP Concepts. MP Concepts Rear Fascia looks the same as the premium style rear bumper, while the Diffuser closely mimics that of the Shelby GT350 to give your base model Mustang a more intimidating appearance.

    Quality Construction. MP Concepts manufactures their premium style Rear Bumper Cover from OEM quality Polypropylene. Polypropylene is an extremely strong and durable thermoplastic polymer, making it perfect to withstand the hazards of daily driven vehicles. The Diffuser is also made from Polypropylene and features a slight black stipple textured finish for an aggressive appearance, superior durability and light weight.

    Complete Kit. MP Concepts Rear Fascia Kit comes complete and includes the rear fascia, lower diffuser, reverse light brackets and a pair of tail pipe inserts. The Kit does

    not include Reverse Lights or Side Markers – these will all carry over from your Mustang.

    Straight Forward Bolt-on Installation. MP Concepts engineered their Rear Fascia to be a direct fit upgrade replacement for your original stock bumper. Installation can be completed in about two hours, after painting of course. Please note that some of your original hardware will be reused for installation.

    Not Prepped for Backup Sensors. This MP Concepts GT350 Style Rear Bumper is specifically designed for Mustangs that do

    not have factory installed back-up sensors. Modifications will be needed if installed on a Mustang that is equipped with back-up sensors.

    Application. This MP Concepts GT350 Style Rear Bumper and Diffuser Kit is designed for use on all 2015-2017 Mustangs, including the V6, EcoBoost, GT and GT350 models.

    Application Note. This MP Concepts GT350 Style Rear Bumper and Diffuser Kit is designed to be used with aftermarket mufflers only, single tips will requiring trimming. This Bumper/Diffuser is

    not compatible with the original factory mufflers.

    Technical Notes. This MP Concepts Rear Fascia Kit ships unpainted. AmericanMuscle recommends professional installation of all body parts. We also recommend test fitting these products before they are painted.

    Freight Notes. Freight items can only be shipped within the continental 48 states, no expedited methods. What is freight shipping? Your Answers are Right Here!.

    MP Concepts

    Fitment: 2015 2016 2017 Details

    MPN# 397417

    CA Residents: WARNING: Cancer and Reproductive Harm -

    What's in the Box
    • (1) Rear Bumper
    • (1) Diffuser Panel
    • (1) Pair of Reverse Light Backets
    • (1) Pair Tail Pipe Inserts
    Installation Info
    Tech Specs
    Will it fit my Mustang?
    • EcoBoost - 15, 16, 17
    • GT - 15, 16, 17
    • GT350 - 15, 16, 17
    • GT350R - 15, 16, 17
    • V6 - 15, 16, 17

    Designed to be used with aftermarket mufflers only, single tips will requiring trimming. This Bumper/Diffuser is not compatible with the original factory mufflers.

      Customer Photos (26) Submit Your Photo

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        Questions & Answers (62)

        5 Top Rated Questions

        since the car is a dual exhaust and not a quad exhaust from the factory. And this kit comes with the quad exhaust look is 2 of the pipes hollow ? I'm confused at how that works ? so the quad is just for looks and only 2 of the 4 exhaust pipes are real ?

        • The MP Concepts GT350 Style Rear Bumper and Diffuser Kit will require the use of a quad tip axle back or cat back exhaust. Single tip exhausts will require modification of the insert panels. This is not compatible with the OEM exhaust.

        Helpful (5)

        Can I use this with a Roush quad tip active exhaust system? Thanks for your help.

        • We always recommend doing a test fit on our body panels, such as the MP Concepts GT350 Style Rear Bumper & Diffuser Kit, this will ensure that you see a proper fitment on everything. This does not have specific fitment for that exhaust, just that it will not work with the factory style exhaust and is recommended for use of a quad tip aftermarket exhaust, that specific exhaust is recommended to use the Roush Rear Valance.

        Helpful (4)

        Will I be able to use this on my 2017 GT Premium with Corsa Extreme Quad Tips?

        • We cannot guarantee that any aftermarket exhaust will be a direct fit with the MP Concepts GT350 Style Rear Bumper & Diffuser Kit. There are many different options to go with. This Bumper will only work with aftermarket mufflers.

        Helpful (2) Show 1 more answer

        Will the stock active quad tip exhaust fit through the openings.

        • Yes this bumper will work with the active quad tip exhaust on the new 2018 Mustang.

        Helpful (1)

        Will this work with aftermarket diffusers? Is the diffuser the same size as the stock premium? I like this but would like to get a more aggressive diffuser.

        • The MP Concepts GT350 Style Rear Bumper & Diffuser Kit - Unpainted is intended to be installed together I can not guarantee for sure that any other aftermarket diffuser would work.

        Helpful (1)
        Post Your Question
        10 More Questions
        Can I use any other valances/diffuser with this bumper besides the one provided? 0 answer
        Do the vents in the rear diffuser actually work or show tell? 1 answer
        Why won’t this product fit a 2018-2019 model? 1 answer
        So in the video you guys say its to replace the bumper on base models. So will this not work with my 2015 GT Premium? I don't have reverse sensors, just the diffuser where the part under the reverse light is the same color as the car but the part that goes from the exhaust tips over the reverse light is black. 1 answer
        Will this work with a Xforce Varex exhaust system for the ecoboost? What quad tips would fit the Varex mufflers? 1 answer
        Since I got my stang I notice a broken clip under the driver side taillight so in conjunction with that and they fact I like the look of this bumper better I am looking to purchase. I have read the comments and seen alot of negative writings about fitment issue. Do you know anything about this? 1 answer
        So I have a 2015 v6, is there an exhaust option that would allow me to use this bumper? 0 answer
        Will This Product work as well for Non-Premium 2015-2017 Mustangs? 1 answer
        Is this product primed and ready for paint? Or does it need to be prepped, primed, then painted? 1 answer
        Can I get a aftermarket quad tip for this kit? I already have a corsa catback and want to show that corsa off. Will the quad tip crosa tips fit this? 1 answer

          Customer Reviews (18) Write a Review

          Overall Rating 3.6

          out of 5 stars

          Installation Time:Full Day

          Installation Cost:$250-$500

          • Fit 3.722222 3.7
          • Appearance 4.666667 4.7
          • Bang For Your Buck 4.388889 4.4

          • 1/5

            July 29, 2019

            Product DID NOT fit

            Purchased this for my 2016 GT. Fit well except for the passenger side. The two clips that the facia clip to near the taillight would not clip on. Tried to reinstall multiple times and still ran into the same problem with the fitment. I will try again with more help but I’m almost possible this part is a lost cause. Might have to just accept the $600 loss.


            Year: 2016 Submodel: GT

            Helpful (0)

          • 4/5

            Installation Time: Less than 1 Hour

            April 23, 2019

            Bought from OfferUp but..

            So honestly I paid $300 for this bumper from a part out so I can’t really complain about it. Quality isn’t the best (for me) because the diffuser didn’t clip on how it should have. If you squat down near the valance you can see a lil gap and for some reason the bumper didn’t have good fitment with my quarter panel. I love the look, just wish the fitment was a bit better..


            Year: 2016 Submodel: EcoBoost

            Helpful (0)

          • 1/5

            Installation Time: Less than 1 Hour

            April 16, 2019

            Wishing it came with warranty

            Awesome product diffuser didn’t fit just right but only down fall is if it breaks they don’t help to warranty it out.


            Year: 2015 Submodel: V6

            Helpful (0)

          • 4/5

            Installation Time: Shop Install

            Installation Cost: $1000+

            April 02, 2019

            Nice bumper

            Its a good bumper for the price.Stock mufflers don't fit with this bumper.Used magnaflow mufflers with the Corsa quad tips.Shop installed the back up sensors.


            Year: 2017 Submodel: V6

            Helpful (0)

          • 1/5

            February 06, 2019

            just the bumper

            The bumper was slightly warped and wouldn't straighten out with heat. Dimples and Craters all over the surface. The diffuser is great. It's just the bumper. It would be much more worth it, if they could supply a true OEM bumper


            Year: 2015 Submodel: GT

            Helpful (0)

          • 1/5

            Installation Time: Afternoon

            January 23, 2019

            Poor poor fitment

            Very dissatisfied with this bumper. The cheap tabs are really easy to break and the fitment was god awful. What a waste! If your ok with your rear bumper being half an inch shorter than your old one then this kits for you. Also if you have a corsa quad tip exhaust good luck fitting the exhaust through the holes without major cutting and adjusting. I test fitted it and took it off id rather cut my stock bumper than mess with this thing. I usually buy all my parts from AM but this thing is making me wonder if i should look elswhere. Please AM take this thing off of your site.


            Year: 2016 Submodel: GT

            Helpful (5)

          • 3/5

            Installation Time: Weekend

            January 09, 2019

            Poor fitment.

            The bumper looks great but I am sorry to say but the fitment is very bad; I did not even get all the pieces for the bumper either. I am missing the license plate holsters to screw into. The bumper is about an inch off or so to one side if you have one side lined up properly. Also the diffuser does not even fit properly as well. Come on MP need to do a way better job!


            Year: 2015 Submodel: EcoBoost

            Helpful (5)

          • 5/5

            Installation Time: Shop Install

            Installation Cost: $500-$1000

            December 28, 2018

            Great fit great look

            Makes a heck of a difference once painted and installed. I used the Corsa quad tips. Black Gloss .


            Year: 2017 Submodel: GT

            Helpful (2)

          • 5/5

            Installation Time: Afternoon

            August 22, 2018

            New booty!

            Man over all happy with it. Not perfect but it is also not over 1000.00


            Year: 2015 Submodel: GT

            Helpful (1)

          • 4/5

            Installation Time: Afternoon

            July 27, 2018

            2018 GT

            I originally purchased this bumper for my 2018 GT. There were a few fitment issues but American Muscle was there every step to help where they could. We were able to get the bumper on the car and it looks great.


            Year: 2018 Submodel: GT

            Helpful (3)

          • 5/5

            Installation Time: Afternoon

            July 01, 2018

            Excellent Product

            Fairly easy install needs to come with fasteners but overall great product


            Year: 2015 Submodel: GT

            Helpful (4)

          • 5/5

            June 30, 2018


            Hey guys can can you help me to find tips that look like the gt350?? I saw most of the coustmers pics and i was wondering where did they get the tips from because they look good


            Year: 2017 Submodel: GT

            Helpful (21)

          • 1/5

            May 16, 2018

            Poor fit. Wide gap. Too short at wheel well

            Wide gap at the seem and where the it joins at wheel well the bumper sits back 3/8. Good from far away but far from good


            Year: 2017 Submodel: EcoBoost

            Helpful (12)

          • 5/5

            Installation Time: Shop Install

            Installation Cost: $100-$250

            April 18, 2018

            GT350 Rear Bumper

            Great quality and fitment. Gives a much more aggressive styling to the rear.


            Year: 2015 Submodel: GT

            Helpful (5)

          • 5/5

            Installation Time: Afternoon

            April 05, 2018

            No brainer

            The dual exhaust look is amazing. I was worried at first the 4" would look too cramped via quad exhaust but it turned out fantastic. Easy install without any modifications needed.


            Year: 2016 Submodel: V6

            Helpful (5)

          • 5/5

            November 07, 2017

            Replacement GT350 MP concepts lower valence

            I bought the GT350 MP Concepts bumper and the lower valence was damaged. After obtaining a spare valence for the premium bumper “only” it does also work as a replacement if you originally bought the MP Concepts rear bumper.


            Year: 2017 Submodel: GT

            Helpful (9)

          • 5/5

            Installation Time: Shop Install

            Installation Cost: $100-$250

            July 03, 2017

            Nice part!

            It gave a much more aggressive look to my car, and is a great quality product. Actually, the plastic on this rear bumper feels thicker than the factory bumper. Perfect fitment.


            Year: 2016 Submodel: GT

            Helpful (6)

          • 5/5

            Installation Time: Less than 1 Hour

            June 14, 2017


            Adds a huge aggressive racing look in the back. Love it great product


            Year: 2015 Submodel: GT

            Helpful (7)

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