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SpeedForm GT500 Style Rear Spoiler; Unpainted (10-14 All)

Item 55806-00
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      Review & Installation Video

      Hey, guys. Justin here with and I'm going to be taking a closer look at one of the most popular spoiler options available for your late S197. I'm talking about this GT500 Style Spoiler, available either unpainted or pre-painted, fitting your 2010 through 2014 Mustang. When weighing your aftermarket spoiler options for your S197, I think you'll find the hands-down favorite with many owners out there, myself included, is the GT500 Style Spoiler for many different reasons.The biggest reason being it really adds to the aggressiveness here at the rear of the car without being over-the-top. As for the build, guys, we're looking at a durable yet very lightweight AVS plastic for the construction. Now as I mentioned at the top of this video, you do have the option of grabbing this spoiler either unpainted, if you have a paint hook-up or if you're going to paint it yourself, or for a few bucks more you can actually spring for the prepainted version, which we have installed on our 2011 GT here.Now the prepainted parts do get sprayed right here in our state-of-the-art paint booth at AM and the best part is, since we use the same paint and clear coat that Ford uses in their factories, you can expect a perfect color match right out of the box. Getting your new spoiler installed on to your ride really isn't that hard of a job but you will spend a little time removing that factory spoiler, which can be a little stubborn. My advice, use a heat gun or a hair dryer or something similar and just take your time. Now once you get that thing out of the way, it's simply a matter of just cleaning and prepping the area using the supplied alcohol prep pads and that 3M adhesion promoter and then getting this thing installed into place.Now the nice thing about this particular spoiler is that you do reuse the bolt holes left by your factory spoiler so no drilling necessary. Now we do call it two hours here on the site but again, expect most of that time to be spent removing that factory spoiler but again, guys, hit up a Mustang expert here at if you have any questions or concerns. So if you're looking to grab one of the hottest spoiler options available for your 2010 through 2014 Mustang, then be sure to check out either an unpainted or a prepainted GT500 Style Spoiler at your Number One source for everything Mustang,

      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation


      • GT500 Inspired Styling
      • Polyurethane Construction
      • Covers Holes Left by Factory Wing, Excluding GT/CS & GT Premium Wings
      • Ships Unpainted, Some Prep Required
      • Fits 2010-2014 V6, GT & GT500 Mustangs


      GT500 Inspired Styling. Add aggressive aerodynamic styling to your Mustang with this GT500 inspired SpeedForm rear wing spoiler.

      Polyurethane Construction.
      The SpeedForm GT500 Style Rear Spoiler is manufactured to higher than OEM specifications from high-pressure injected molded polyurethane material for its durability, and a perfect fit.

      Covers Factory Holes.
      This SpeedForm Rear Spoiler covers the existing holes left in the trunk lid by the stock wing and does not block the view of factory third brake light. The wing installs easily with a combination of hardware and 3M automotive bonding tape (included). Please note: California Special GT or GT Premium owners will find the holes left from the factory spoiler will not line up perfectly for installation of this GT500 Spoiler.

      This SpeedForm GT500 Style Rear Wing Spoiler fits all 2010-2014 Mustangs including the V6, GT, Boss, and Shelby GT500 models. This Rear Spoiler is not compatible with rear camera equipped vehicles.

      Shipping Note:
      This product can not be shipped to an APO/FPO, Guam or US Virgin Islands addresses.

      Technical Note: AmericanMuscle recommends professional installation of all body parts. We also recommended test fitting these products before they are painted.


      Fitment: 2010 2011 2012 2013 2014

      SpeedForm 55806-00

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (100+)

      Write a Review

      Ratings Summary

      4.8 out of 5 overall rating from 100+ customers

      Installation Time: Afternoon

      Installation Cost: $100-$250

      • April 30, 2020

        Review shared from SpeedForm GT500 Style Rear Spoiler; Pre-Painted (10-14 All)

        4 2013 GT - MustangJ Installation Time: Afternoon

        Love the Spoiler but....

        The spoiler looks outstanding! The paper instructions, however left a few critical pieces of information out. The screw packet included 4 pieces of backed adhesive and 4 cushioned screw pads. The instructions didn't say anything about how to install these items. They may not be needed for every model but that should have been noted in the instructions. Also, the screw attachment holes in the spoiler bottom didn't perfectly align with the holes in the trunk of the Mustang. So the spoiler is just barely off center to the right. Maybe one or two millimeters. Lastly the instructions don't mention whether to remove the backing on the end pieces of adhesive tape. If you remove them in advance the spoiler starts to stick to the car before you get a chance to adjust the spoiler location. If you don't remove it the spoiler won't be as secure on the sides. Overall, the spoiler looks great and took about 2 hours to install by a novice father/son team.

        Helpful (2)
      • April 10, 2020

        Review shared from SpeedForm GT500 Style Rear Spoiler; Pre-Painted (10-14 All)

        5 2011 GT - Zarek Installation Time: Afternoon

        Completes the rear of the car

        This wing really completes the rear of the car. Nice touch to change things up but not obnoxious. The hardest part is getting the oe wing off.

        Helpful (3)
      • March 21, 2020

        Review shared from SpeedForm GT500 Style Rear Spoiler; Pre-Painted (10-14 All)

        5 2013 GT - CreoleMamba Installation Time: Afternoon

        Just What I wanted

        The GT500 spoiler is perfect for my 2013 coyote. The part that takes the longest is removing the adhesive from the previous spoiler. Other than that this install is extremely easy and straightforward

        Helpful (4)
      • February 21, 2020

        Review shared from SpeedForm GT500 Style Rear Spoiler; Pre-Painted (10-14 All)

        5 2010 GT - MatthewM

        Nice paint match

        I just got this spoiler today and I must admit,I was a bit skeptical about the paint matching because of the overall age of the mustang (2010) but I couldn’t be happier. It really should give the back of my mustang a more aggressive look. The other positive is no drilling. The holes will line up with my factory spoiler that’s on there now. I’ll post a few pics once it’s installed. American muscle had this thing wrapped very tight for packaging so thanks to them.

        Helpful (3)
      • February 02, 2020

        Review shared from SpeedForm GT500 Style Rear Spoiler; Pre-Painted (10-14 All)

        5 2014 GT - BrianZ123 Installation Time: Afternoon

        Great New Look

        I loved the new look of the gt500 style wing the color match was spot on the only thing that sucked was getting the glue residue off the the car which was about an hour for me but it was totally worth the hassle.

        Helpful (3)
      • December 20, 2019

        Review shared from SpeedForm GT500 Style Rear Spoiler; Pre-Painted (10-14 All)

        5 2013 GT - Ta1on Installation Time: Less than 1 Hour

        Paint quality and fit was perfect!

        Just like every Pre painted part from AM the quality of the paint and the fit was perfect. Took no more than 15 minutes for me to install. Can’t ask for better. The spoiler is a great addition to the car. Guess that’s why this is the most popular aftermarket spoiler out there. Pair this spoiler up with a rear valence and your mustang will make every car that you pass jaws drop. Love this spoiler!

        Helpful (3)
      • December 19, 2019

        Review shared from SpeedForm GT500 Style Rear Spoiler; Pre-Painted (10-14 All)

        4 2013 V6 - Tyler Installation Time: Less than 1 Hour

        4/5 paint match was meh

        One if the holes for the install didn’t line up and the paint match was off my car is sterling grey and the color on the spoiler is slightly darker

        Helpful (3)
      • June 30, 2019

        Review shared from SpeedForm GT500 Style Rear Spoiler; Pre-Painted (10-14 All)

        5 2014 GT - ChristopherM Installation Time: Less than 1 Hour


        What a difference.. Looks great easy to Install hardest part was getting the old glue and 3m off.. Came out great.. Paint matches exactly

        Helpful (3)
      • May 19, 2019

        Review shared from SpeedForm GT500 Style Rear Spoiler; Pre-Painted (10-14 All)

        4 2014 GT - mattsvtsnake Installation Time: Afternoon

        NIce spoiler

        The color is a little darker than the factory Sterling Gray but its not real terrible. Also wish it was painted black where the Gurney flap would be. It would also be easier to install if they would use studs for mounting like the factory spoiler rather than screws going into threaded inserts. Very time consuming to remove the original spoiler.

        Helpful (4)
      • May 16, 2019

        5 2014 GT - Camarokillah Installation Time: Less than 1 Hour

        Live it

        Wing fit perfect excellent quality delivery was fast

        Helpful (3)

      Questions & Answers (75 answers)

      5 Top Rated Questions

      Do the holes matchup if you have an existing spoiler? In the description it says that the existing holes will be covered by the wing and that drilling two new holes is required. When reading some of reviews, they don't mention having to drill new holes and that the wing is a good fit. Sorry im a little confused so my question is "Will I have to drill new holes after I remove the stock wing or will the existing holes match-up with the new wing?"

      • Yes they do match up. If you don't have an existing spoiler they have to drill the holes but it does come with a template to make sure they are accurate.

      Helpful (15) Show 4 more answers

      Mustang rear spoilers my 2011 Mustang does not have a rear spoiler on it. what is needed to install the GT500 style spoiler on it? Does it come with a templet for drilling the holes in the deck lid? on a scale of 1-10; with 10 being very hard what is the level of the install?

      • Honestly, I don't think i would attempt drilling the holes. If you mess up you DO NOT get a second chance. If i were you i would take it to a reputable shop. I had a local shop quote me for $125 for the installation of a spoiler.

      Helpful (8) Show 4 more answers

      Does the Gurney flap detach from this spoiler or is it molded in.

      • Unfortunately the gurney flap is molded into this spoiler. It does not detach. One more detail to take into consideration when you purchase your pre-painted part is that the flap will be the same color as the rest of the spoiler and will thus not be black.

      Helpful (7) Show 2 more answers

      I have a 2014 GT with track pack. The description says this spoiler doesn't work with the factory holes. What do I do in this case? If i need to drill new ones and plug the old ones, does the new spoiler cover the old holes from the stock spoiler?

      • It depends on the spoiler you currently have on your car. If it is the pedestal spoiler, that comes on the GT/CS, that has 8 holes and this GT500 spoiler will only uses 4, which leaves 4 holes open. If you have an OEM spoiler that comes on the track pack (just a lip), this spoiler will use those existing holes.

      Helpful (6)

      I have the pedestal spoiler, that comes on the GT/CS, that has 8 holes and this GT500 spoiler will only uses 4, which leaves 4 holes open.Will this spoiler cover the 4 additional holes

      • This will not cover the holes left by factory GT/CS spoilers.

      Helpful (4)
      10 More Questions
      I really want this spoiler on my 2013 gt, the only thing holding me back is my mustang has racing stripes on it, and I don't want to buy an entire racing stripe kit, just to put on this spoiler. Is there a smaller stripe kit I could buy just for this spoiler? 1 answer
      any noticeable effect on fuel economy? 4 answers
      Will this work with the factory reverse camera? I bough my 2013 with the reverse camera and the lense is mounted in the factory spoiler.... doese this spoiler have provisions for the camera? 4 answers
      When will the performance white be in stock again? 0 answer
      Does it line up for the OEM holes in a 2013 Boss 302? 0 answer
      I have a 2013 Mustang GT in the “red candy” color. Yet you don’t show that as an option on the 2013 and 2014 models.......but you do on the 2012 model. If I buy this using the 2012 model year, will it work fine on my 2013? It’s the same exact color code. Didn’t know why you don’t show this color for the 2013/2014 model years. 0 answer
      My 2011 mustang has never had a spoiler on it I will be drilling holes I’m wondering if it could with hardware for my install? Like bolts? 1 answer
      What modifications would I have to make to my 2010 GT Premium so the factory holes will line up with the new spoiler? 1 answer
      What color is it unpainted? 1 answer
      Do you have to change the struts on the trunk lid for the excess added weight of the GT500 spoiler? 1 answer

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Rear Spoiler
      • (4) Screws
      • (4) Washers
      • Alignment Templates

      Tech Specs