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Ford GT500/CS/BOSS Rear Diffuser (10-12 All)

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Market Price $290.99 You Save 7% ($21.66)
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$269.33

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  • Item 53675

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    Features, Video & Details

    • Shelby GT500/Boss Styling
    • Genuine Ford Part
    • Features Grained Texture
    • OEM-Quality Plastic Material
    • OEM Fit and Finish
    • Fits 2010 to 2012 Mustangs

    Review & Installation Video

    Review & Install Video

    Hey, guys. Adam here with americanmuscle.com. Today, I'm bringing you a detailed overview and installation of the Ford GT500/CS/BOSS 302 Rear Diffuser, available for all 2010 to 2012 Mustangs. So in this video, I'll be going over the styling and appearance you can expect from this particular rear diffuser directly from Ford as well as the materials and construction. I'll top the video off with the installation, letting you know upfront it will get a one out of three wrenches on our difficulty meter, meaning it does not require any cutting, trimming, or drilling to get this installed.The Ford GT500/CS/BOSS Rear Diffuser you see here today will be for any '10 to '12 Mustang owner looking to switch up the rear end look of their own S197 to be similar to the styling of the Ford GT500, California Special, and Boss 302 models. Now, this is gonna be geared for the guys out there looking to switch up the design, but not really aiming for an aftermarket look, but wanna keep it in the Ford family with a true Ford OEM part directly from their own warehouse. Now, typically, with something like this from Ford, you'd expect a pretty high price tag, but actually, this one's gonna be more on the affordable, compared to some of the other aftermarket options, coming in right around the $160 mark. Now, if you are someone looking for a more race-inspired design, there are plenty of different options out there from very different manufacturers to give you that aftermarket look, but this one's gonna stay true to the Ford family.This is literally going to be a direct-fit replacement coming from the Ford warehouse, and it's something you would've seen on the '10 to '12 Shelbys, California Specials, or Boss 302s, which all share the exact same rear diffuser design, the one you see on the table today. Since it is a direct-fit replacement from Ford, it does not require any drilling, cutting, or permanent modification to get installed. It'll be a direct bolt-on install. Now, after all, this is something that is gonna be a perfect accident repair. If you need a rear diffuser and you're looking to pick up an upgraded styling, this is a great way to go, or for the guys out there looking to pick up a more aggressive design.So as you can see, this one is a little bit larger and wider than the factory option that came on your GT or V6, and it does come with a matte-black finish and a textured design here just to give it a little bit more detail and, of course, rock resistance and impact resistance. Underneath here, you get a fin styling right under the license plate, between the two tailpipes, which actually might appear to be a separate piece, but it is all one connected continuous piece that, in my opinion, really flows with the lines of the body style. And since it did come on those Shelby and other models I mentioned earlier, you would expect it to look like it came from the factory. Since it is coming directly from Ford, expect really high-quality, pressure-injected thermoplastic, which is impact-resistant and long-lasting, just everything you'd expect from the Ford warehouse. So you don't have to worry about sacrificing quality with this.Because it has such a high-quality material and because it's coming directly from Ford, I'd expect it to typically have a pretty high price tag. Fortunately, that's not the case with this option. It comes in right around the $160 mark, which is more affordable than a lot of the aftermarket options with lesser-quality materials. Now, because of that, I would typically recommend this one for anybody looking to pick up a new rear diffuser, because you've got an upgraded styling, which, in my opinion, is more aggressive, doesn't require any extra work as far as install is concerned. So if you're in need of one, in my opinion, this is a perfect fit.As far as that install is concerned, you wanna have simple hand tools on deck, like a ratchet, socket set, Phillips-head screwdriver, flat-head screwdriver, pliers, very simple hand tools such as those. And of course, two to three hours at the most on the install time, and it definitely gets a one out of three wrenches on our difficulty meter. To kick things off, you will have to remove parts of the rear bumper. Now, pop open the trunk. You'll have to push away some of that trunk liner to gain access to a couple of push pins as well as the trunk light harness, which you'll have to disconnect. You'll also have to disconnect your tail light harnesses and remove those as well to gain access to the some of the things you need. The whole bumper should come off with the removal of a couple of screws inside the wheel wells of the rear. In addition to that, there's a couple of clips inside as well that'll help things come off a lot easier. Once you have the bumper completely off, you'll have to remove a couple of the wiring harness from inside. Now, that step isn't exactly required, but it is recommended to make things easier on you in the long run. From here, installing the diffuser after removing the factory option is extremely simple. It's just a matter of push pins that go all the way around the edges of the diffuser from the Ford factory. From there, just put everything back together in the reverse order you took it off in, and then you're good to go.One thing I will mention here is your backup sensors. If your Mustang is equipped with those, you will have to drill holes to make those work if you do have them equipped. If you're okay losing those and you don't wanna make any drilling or modifications, then, of course, you can skip that step. But if you'd like to make those work, the drilling holes will be necessary, in which case the installation instructions, which will detail everything I just mentioned and help you along your way, will also help you with that step as well. Overall, everything should take about two to three hours at the absolute maximum, and, again, a one out of three wrenches on our difficulty meter.Just to wrap it up, if you're the owner of a '10 to '12 Mustang, you might be looking for a way to swap out your rear diffuser to get something a bit more aggressive, while sticking to the Ford family options without going to an aftermarket design. If that sounds like you, you might wanna check out the Ford GT500/California Special/Boss 302 Rear Diffuser, available right here at americanmuscle.com.

    Shelby GT500 Styling. This Lower Rear Valance (a.k.a. Diffuser) is the exact same one that is featured on the Shelby GT500, California Special and Boss Mustangs. Offering aggressive race inspired styling this rear diffuser makes the perfect replacement part or appearance upgrade for your Mustang.

    Quality Construction. Made from OEM quality high pressure injection molded thermal plastic for it's long lasting durability, this rear diffuser features an OEM grained texture to increase longevity against rock impacts from daily driving.

    Application. This Rear Diffuser is a direct fit replacement for the 2010 to 2012 Shelby GT500, California Special and Boss Mustangs, and can be installed to upgrade the appearance of the V6 and GT models.

    Shipping Note: This product can not be shipped to an APO/FPO, Guam, Hawaii, Puerto Rico, Alaska, the US Virgin Islands or Canada addresses.

    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: 2010 2011 2012 Details

    MPN# AR3Z-17F828-AA

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

    What's in the Box
    • (1) Rear Diffuser
    Installation Info
    Tech Specs
    Will it fit my Mustang?

      Customer Photos (100+) Submit Your Photo

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        Questions & Answers (27)

        5 Top Rated Questions

        Does this fit on a 2013 GT? I want to add this to my new 2013 GT. WIll this fit, (does the 2013 have the same dims as the 2012 rear end) or am I going to have to wait for the Spring of 2013 to get a properly matched product?

        • You'll have to wait for the proper product unfortunately. There were many changes made between '12 and '13. The appropriate product for your car will be out soon enough, so I'd just wait it out.

        Helpful (3) Show 4 more answers

        Can this retain the factory rear backup sensors?

        • This does not have provisions to retain the backup sensors. Retaining the sensors will require fabrication. 

        Helpful (1)

        Will quad tips fit or does it have to be cut wider?

        • Unfortunately quad tips exhausts will not work with this diffuser.

        Helpful (0)

        Can the diffuser be removed from the valance or is it all one piece?

        • This will be all one piece.

        Helpful (0)

        Does this product come with a finished paint ,if so what kind. And or would it be unpainted black ?

        • Unfortunately this product is not currently offered in a pre-painted application. It will have a matte black finish.

        Helpful (0)
        Post Your Question
        10 More Questions
        If I,buy the Ford GT500/CS/Boss Rear Diffuser and RTR three piece Splitters together,will they fit together under my 2012 Mustang GT? 1 answer
        Can this be easily mounted and the stock removed without a lift? 1 answer
        How do I get the 4 tabs below the license plate to get seated correctly? I noticed that they weren't all the way in after I put the bumper back on the car. They won't go in no matter how match I push on the diffuser. 1 answer
        will this product fit my 2012 3.7 v6, base convertible, with dual axel back exhaust? 1 answer
        will this product fit my 2012 v6 3.7, base convertible. 1 answer
        Is it directly replacement rear bumper valance for 2010 mustang v6? 1 answer
        I did a quad pipe style on my 2010gt, will this fit since I have a quad tip? 1 answer
        Is there anyway i can transfer my factory rear parking sensors over to this? 1 answer
        will it fit a 2012 gt convertible 1 answer
        will this fit a 2o11 v6 with Roush axel backs? 1 answer

          Customer Reviews (100+) Write a Review

          Overall Rating 4.9

          out of 5 stars

          Installation Time:Afternoon

          Installation Cost:0-$100

          • Fit 4.801724 4.8
          • Appearance 4.931035 4.9
          • Bang For Your Buck 4.758621 4.8



          • 5/5

            Installation Time: Afternoon

            June 16, 2019

            Took some time

            Took a while have to kinda take the bumper off. But it looks nice

            Taj

            Year: 2011 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            April 11, 2019

            Rear diffuser

            Beautiful addition to my car fast shipping! Very great price.

            Jesus

            Year: 2012 Submodel: GT

            Helpful (0)

          • 4/5

            Installation Time: Afternoon

            March 22, 2019

            Excellent addition

            I just had to have this! Very easy install, a buddy and i did it in about 2 hours. An vast improvement over my stock v6 one!

            Trent

            Year: 2012 Submodel: V6

            Helpful (0)

          • 5/5

            Installation Time: Afternoon

            March 14, 2019

            Good look

            expect to spend about 2 hours for replacing but its worth it.

            Destry

            Year: 2012 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Weekend

            January 25, 2019

            Perfect fitment

            Gives it an aggressive look compared to stock. Straight forward on to installling.

            MartinV

            Year: 2012 Submodel: V6

            Helpful (1)

          • 5/5

            Installation Time: Afternoon

            January 13, 2019

            V6 Single to Dual

            The Bumper fit like a glove, did have to make a few stop to get some screws though.

            JohnnyG

            Year: 2010 Submodel: V6

            Helpful (1)

          • 4/5

            Installation Time: Less than 1 Hour

            December 03, 2018

            Harder than it looks

            Looks great but the video doesn’t show you what you need to do.

            GeorgeA

            Year: 2011 Submodel: V6

            Helpful (1)

          • 5/5

            Installation Time: Afternoon

            November 06, 2018

            Worth the effort

            Really adds a more aggressive look than stock one and is not difficult to instal. I definitely recommend that you watch a YouTube video called How to install rear diffuser 2005-2014 Mustang although video is a 2014 which is a little different than my 2012 but it will show you how to get your bumper off. After that its pretty much common sense. You should definitely purchase a pin pulling tool about 15 bucks at any auto parts store and 2-3/8x1 bolts with 4 washers, 2 lock washers and nuts all stainless for 2 straps on new diffuser that attach behind gas tank to body, holes are already there. All told 2 hours start to finish for install which I did alone with a 15 minute break.

            BrianH

            Year: 2012 Submodel: V6

            Helpful (2)

          • 5/5

            Installation Time: Afternoon

            September 05, 2018

            Nice upgrade from stock

            Perfect fit and looks great! Replaced my stock bumper which had some minor damage. Instructions could be a bit clearer on push pin locations. Adding some arrows to the circles pointing to the locations would help a great deal. Also including the size push pins for the extra mount points would help as well.

            NealD

            Year: 2012 Submodel: V6

            Helpful (3)

          • 5/5

            Installation Time: Less than 1 Hour

            September 01, 2018

            Great looking upgrade!!!

            Item arrived in LARGE box. Although the instructions say 2-3 hours, if you're handy you can do it in about an hour. It really speeds things up if you have one of the plastic pin removal tools because there are a lot of them. Great OEM Ford product!!!

            LewisP

            Year: 2011 Submodel: GT

            Helpful (2)

          • 5/5

            Installation Time: Afternoon

            August 15, 2018

            Easy install

            Great direct fitment for my 2010 v6 and definitely added some aggressiveness. Took about 3 hrs but I did it alone and I did it correctly. Very simple to install just can't rush it or you'll break clips like whoever took my bumpers before. The extra tabs at the bottom, use them, they weren't added to confuse you they stabilize the bumper to the frame.

            JohnR

            Year: 2010 Submodel: V6

            Helpful (3)

          • 5/5

            Installation Time: Less than 1 Hour

            July 19, 2018

            Easy upgrade, looks great

            My stock diffuser was faded and didn't add much to the look to begin with. This OEM upgrade is cheaper than the OEM replacement and gives a much better look

            Chris

            Year: 2010 Submodel: GT

            Helpful (3)

          • 5/5

            Installation Time: Less than 1 Hour

            July 13, 2018

            changed the look of my stang

            came in in about a week. took about an hour to take everything apart and put it back together. changed the whole look of the car, sleek and looks way better than the stock diffuser. (installed on a 2010 mustang)

            Zach

            Year: 2013 Submodel: GT

            Helpful (4)

          • 5/5

            Installation Time: Less than 1 Hour

            June 14, 2018

            GT500 Diffuser

            Quality Ford product. I replaced my old one on my 2012 v6 and it drastically dresses up the rear end adding a great aggressive look. Just enough style so it looks clean and not overdone. Direct replacement of my old diffuser. Would highly recommend to anyone wanting to dress up their rear end or replace a sun faded factory one. Took about an hour.

            ncben2014

            Year: 2012 Submodel: V6

            Helpful (6)

          • 5/5

            Installation Time: Afternoon

            June 05, 2018

            Rear Diffuser

            Well worth the buy! My 2010 GT premium had a similar material factory bumper that was faded due to the sun. The new piece looks great! There might be discrepancies between customers on the fitment because its put on by hand. Once that 3M tape is on its on! Great purchase.

            Kevin

            Year: 2010 Submodel: GT

            Helpful (12)

          • 5/5

            May 27, 2018

            GT 500 Rear Diffuser

            Love the look of this piece way over the factory valance. I recommend it. Took about an hour to install, without a lift.

            Thomas

            Year: 2011 Submodel: GT

            Helpful (4)

          • 5/5

            Installation Time: Less than 1 Hour

            May 21, 2018

            GT500 valance

            Was worth it looks way better had mine painted to cars color looks better then plastic look

            JorgeC

            Year: 2012 Submodel: GT

            Helpful (4)

          • 5/5

            Installation Time: Less than 1 Hour

            May 19, 2018

            Excellent for the price!

            Fit really well. Had no issues with quality or fitment. Really great product with GT500 styling for a great price.

            KyleP

            Year: 2012 Submodel: V6

            Helpful (3)

          • 4/5

            Installation Time: Shop Install

            Installation Cost: $100-$250

            May 05, 2018

            Looks great!

            There was a scratch on the left side of the part. Not really bad, but I hope I can cover it with Black To Black. Other than that, I'm satisfied. The old one was really an eyesore!

            James

            Year: 2011 Submodel: V6

            Helpful (3)

          • 5/5

            Installation Time: Afternoon

            April 07, 2018

            Excellent style and fit

            Great part and the price point cannot be beat! Highly receommend

            JeffreyA

            Year: 2011 Submodel: GT

            Helpful (4)