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

Market Price $799.99 You Save 15% ($120.00)
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  • Item 397417

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Ship to: Ashburn - 20149
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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!.

    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.

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    Questions & Answers (56)

    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 (3)

    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
    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
    Why doesn't the diffuser fit on a nonpremium mustang what is the difference between the bumpers? 1 answer
    Will this diffuser kit fit on a non-premium 2017 gt. It does say all 15-17 mustangs 1 answer
    Can I just attach the diffuser to the stock rear bumper? 1 answer
    Do you have to drill holes for the back up sensors with this product? 1 answer
    Will fit with the Roush Quad Tip Active Axle-Back Exhaust available here for sale? 1 answer
    Dose it fit with none premium bumper? 1 answer

    Recommended For You

    Customer Reviews (14) Write a Review

    Overall Rating 3.9

    out of 5 stars

    Installation Time:Full Day

    Installation Cost:$250-$500

    • Fit 3.928571 3.9
    • Appearance 4.642857 4.6
    • Bang For Your Buck 4.5 4.5

    • 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 (2)

    • 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 (3)

    • 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 (20)

    • 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 (10)

    • 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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