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

Market Price $144.99 You Save 12% ($17.21)
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$127.78

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  • Item 53675
  • MPN# AR3Z-17F828-AA

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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.

    Fitment: 2010 2011 2012 Details

    What's in the Box
    • (1) Rear Diffuser
    Installation Info
    Tech Specs
    Will it fit my Mustang?
    • Boss 302 - 12
    • GT - 10, 11, 12
    • GT500 - 10, 11, 12
    • V6 - 10, 11, 12

    V6 Mustangs require a dual catback exhaust system

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    21 Questions / 10 Answers

    Ask a Question

    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?

    dave72b

    • 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.

      Logan50

    Show 4 more answers Helpful (3)

    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.

    AcePilot

    • The Ford GT500/CS/BOSS Rear Diffuser has tabs that simply need to be pushed in for a proper install. We recommend propping the Diffuser up so that it is not being installed on an angle.

      AshleyK

    Helpful (0)

    will this product fit my 2012 3.7 v6, base convertible, with dual axel back exhaust?

    JorgeR

    • The Ford GT500/CS/BOSS Rear Diffuser will fit a 2012 V6 Mustang with a dual exhaust system.

      AshleyK

    Helpful (0)

    will this product fit my 2012 v6 3.7, base convertible.

    JorgeR

    • The Ford GT500/CS/BOSS Rear Diffuser will fit on a 2012 V6 Convertible.

      AshleyK

    Helpful (0)

    Is it directly replacement rear bumper valance for 2010 mustang v6?

    TaifA

    • Installing the Ford GT500/CS/BOSS Rear Diffuser on V6 Mustangs will require a dual catback exhaust system.

      JaHarrisAM

    Helpful (0)

    I did a quad pipe style on my 2010gt, will this fit since I have a quad tip?

    MoisesD

    • The Ford GT500/CS/BOSS Rear Diffuser is designed for a single exhaust tip set up.

      JaHarrisAM

    Helpful (0)

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    Customer Reviews (98) Write a Review

    Overall Rating 4.9

    out of 5 stars

    Installation Time:Afternoon

    Installation Cost:0-$100

    • Fit 4.772727 4.8
    • Appearance 4.943182 4.9
    • Bang For Your Buck 4.75 4.8



    • 5/5

      Installation Time: Shop Install

      Installation Cost: 0-$100

      February 07, 2018

      Looks great!

      I put a pypes catback exhaust on my 2010 V6 a while back, and couldn't stomach the retro-fitted v6 piece (literally just cut a hole in the plastic,) so I finally sprung for this diffuser. Couldn't ask for a better appearance upgrade, and looks even better with the Pypes dual exhaust.

      DankeyStang

      Year: 2010 Submodel: V6

      Helpful (0)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $100-$250

      January 26, 2018

      Loved it more after painting it

      Fits perfectly with my 2010 mustang was my goal to get it that daul exhaust system also gave it the freaky looking loved it and price was pretty good. thanks for the good communication.

      TaifA

      Year: 2010 Submodel: V6

      Helpful (1)

    • 5/5

      Installation Time: Afternoon

      January 12, 2018

      Awesome!!

      Took longer than expected to deliver, but it's worth the wait!!! Was easy to put on and the fit was perfect! It looks awesome especially since I lowered my mustang. A must buy!

      MauriceL

      Year: 2011 Submodel: V6

      Helpful (0)

    • 5/5

      Installation Time: Afternoon

      December 22, 2017

      Great Upgrade

      Doesn’t look a whole lot different from the stock one but certainly adds a little more aggression to the rear of the vehicle. Cheap enough at $130 to do. Overal I’m happy and you will be too. Looks factory once installed.

      Zach

      Year: 2011 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $100-$250

      November 15, 2017

      Best diffuser for a budget

      This is the best diffuser anyone can get for a v6. Of course without getting a $1000 TruFiber diffuser... but I wanted the most depth I could get and this CS one is the best looking. And with the extremely limited options for a v6, this is the way to go.

      Jacob

      Year: 2012 Submodel: V6

      Helpful (0)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $100-$250

      October 19, 2017

      best rear diffuser

      Best rear diffuser in my opinion. Not too over the top like the RTR but gives the rear a distinct aggressive look. The shop had a difficult time putting it on so don't expect this to be an easy install.

      Nick

      Year: 2010 Submodel: V6

      Helpful (3)

    • 5/5

      Installation Time: Afternoon

      October 10, 2017

      Ford GT500/CS/BOSS Rear Diffuser

      Great product. Fitment was excellent. I had to replace the bumper cover at the same time anyway. No major issues.

      DirtyD

      Year: 2011 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Less than 1 Hour

      September 30, 2017

      great look

      well install was relatively easy once i removed the rear bumper cover, removed the bolts everything went back together fairly simple. definitely worth the money to give it a better look

      John

      Year: 2010 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Less than 1 Hour

      September 07, 2017

      Cleans up rear end

      This rear diffuser is a must for any mustang owner, i absolutely love it and get a lot of compliments over the stock bumper which i had cut to make room for my true dual exhaust! 5/5

      JosephJ

      Year: 2010 Submodel: V6

      Helpful (0)

    • 5/5

      Installation Time: Less than 1 Hour

      August 24, 2017

      Nice product

      It came via freight, wrapped in a thick foam. So be sure to give it a good look over. Mine turned out great. I set up a table to place the bumper upwards. It made it easier to remove/install the diffuser. I removed the bumper without jacking the car up. That part was actually easy. Just follow the instructions on removal given on AM website.

      DrisStang

      Year: 2011 Submodel: V6

      Helpful (0)

    • 5/5

      Installation Time: Less than 1 Hour

      August 16, 2017

      How the car should have been buit

      Fit and finish is near perfect. Install took about an hour. It was easy, but care and patience will be required to remove the factory push pins. Rear of the car is how it should have come originally.

      Jimljr

      Year: 2011 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Afternoon

      August 09, 2017

      Rear diffuser

      Took about 2 hours to install but very easy. Make sure the middle clips go in and get set first then work your way down. Looks amazing on my GT!

      WilliamZ

      Year: 2010 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Afternoon

      June 29, 2017

      Rear Valence

      The product feels like the same quality of the oem valence which is good. The time to install is accurate taking me with the right tools about 3 hours. You do not have to take off the rear tires if you have a philips screwdriver about an inch long. It has to be very small as there's not much room. very happy with the way it looks.

      RJ

      Year: 2010 Submodel: V6

      Helpful (0)

    • 5/5

      Installation Time: Afternoon

      June 19, 2017

      Looks much better than the stock rear

      Packaged very well, had everything it needed. The instructions are slightly different for 13 , but it's actually easier to install on the 10-12s. OEM quality, nothing bad to say. Just a little pricey for what it is, but I imagine shipping is pricey for this piece.

      ezpotato

      Year: 2012 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Afternoon

      June 08, 2017

      Changes the back end

      I'm very happy with the bumper. Please be aware that you have to take the whole rear end off to switch the bottom bumper. It did is solo in 3 hours. Not an easy install.

      ScottR

      Year: 2012 Submodel: V6

      Helpful (0)

    • 5/5

      Installation Time: Afternoon

      May 22, 2017

      Rear valence

      Fits my 2010 Mustang perfectly. Originally had the performance shop cut out the second hole for the dual exhaust until this came in. Then had a body shop install this part. Looks great on the car. Now just need new rockers.

      JoshuaI

      Year: 2010 Submodel: V6

      Helpful (0)

    • 4/5

      Installation Time: Less than 1 Hour

      May 05, 2017

      Beautiful

      Cleans up the whole look of the car ! Fit decent thought it would fit better since its oem but looks great

      BrennanY

      Year: 2012 Submodel: V6

      Helpful (0)

    • 5/5

      Installation Time: Afternoon

      April 28, 2017

      gt500 diffuser

      It came in a huge box and was wrapped great. I was thinking about taking it to a shop but since there are videos online I did it myself. Trust me I tend to break more than I fix this product was easy once you kow how to take it apart from the car. Use the blue wrap that comes with it as a layer so you don't scratch your bumper. It was a one person job and once its off it will go quick just take your time with the screws and light harness. Great fit now go buy the mud flaps to set it off.

      AbrahamA

      Year: 2011 Submodel: V6

      Helpful (0)

    • 5/5

      Installation Time: Afternoon

      April 21, 2017

      GT500/CS/BOSS REAR DIFFUSER!!

      Amazing product it fit the car perfect and gave it a more aggressive look I would recommend this part to anybody. Just make sure you have time to install it

      BruceC

      Year: 2010 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Afternoon

      March 23, 2017

      What a difference

      Bought this diffuser what a difference it made the fit was first rate shipping was fast and the look was spot on thanks to AM for another great mod from Ford you guys rock

      stangman

      Year: 2011 Submodel: V6

      Helpful (0)

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