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SpeedForm GT350 Style Track Pack Rear Spoiler; Gloss Shadow Black (15-20 All)

Item 406911-G1
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      Review & Installation Video

      Justin: If you're a fan of that Shelby GT350 Track Pack styling and want the convenience of a pre-painted part, well then you should definitely consider checking out SpeedForm's GT350 Style Spoiler shown here in black for your 2015 and newer Mustang. Now, SpeedForm's option is constructed from durable ABS plastic and is finished in an OE quality Ford gloss black paint for right around 150 bucks. Installation's gonna go down one of two different ways. If you have a factory spoiler installed, you're looking at a straightforward job here that requires no drilling whatsoever. On the other hand, if you do not currently have a spoiler or wing attached, there will be some minor drilling involved. So because of all this and the variables, the site's just gonna go two out of three wrenches on the difficulty meter here and call it a couple of hours to complete from start to finish as we'll show you later in the video.Now, the spoiler category is a rather large one and will feature mild stuff like the factory blade type spoilers all the way down to the gnarly carbon fiber GT350R stuff and everything in between. Now, the option that we're talking about here today is another factory-inspired part and one that I think personally will live somewhere in the middle between mild to wild in regards to overall sizing and styling impact, and that is the standard GT350 track pack spoiler. Now, prior to the 2019 model year, Ford did release two versions of the standard GT350, basically, the non-R variant and that was the tech pack and also the track pack car. Tech pack had a very basic and unassuming blade style spoiler, which I thought was almost too subtle for the mighty Shelby. Now, the track pack style spoiler, on the other hand, fit the car perfectly and offered a good amount of aggressiveness, if you will, for a spoiler. Sure it's not as crazy as the GT350R option, but let's face it, that spoiler is a little much for most casual Mustang owners out there. This guy, on the other hand, perfect, right in the middle and just look great on the car.But let's focus in on the track pack style spoiler that we have here from SpeedForm. And on the surface, you do have a very durable and lightweight ABS plastic build with a lot of the same design detail as that OE Shelby option. The flip side is it's gonna be far less dough than buying an OE part directly from Ford and you're also getting the benefit of it being pre-painted right out of the box in this nice gloss black paint job. Now, this would be ideal for owners out there either looking to match a black car or maybe just prefer the color contrast on any other color Mustang. I do also wanna point out here, gang, that we also offer this same exact spoiler on the site but pre-painted in any different color to match your ride, but the price does jump up dramatically to north of 400 bucks.But let's get into the installation here with the SpeedForm spoiler and, again, one of two different things to consider. If you have a factory spoiler already installed, there's no drilling necessary, just have to remove that factory spoiler first. On the other hand, if you do not have anything installed on that deck lid, to begin with, well then you will need to drill. There's really no getting around that. But to give you a better idea of how this is gonna go down, here's a detailed walkthrough of the job along with a quick tool breakdown.Man: Tools you use for this install are a clip and panel removal tool, Phillips head screwdriver, a 10-millimeter socket, small plastic scraper, quarter-inch ratchet, an eraser wheel, a power drill, and some 3M general purpose adhesive remover. So before you can install your new spoiler, you're gonna have to remove your old spoiler. In order to do this, we're gonna pop the trunk, remove the hardware, and the interior panel. Now I'm gonna use an interior panel tool to remove all the clips that hold this interior panel on and get access to the screws. Next, I'm gonna use a ratchet with a 10-millimeter socket and remove the four nuts that secure the wing to the trunk lid. There's one on either side and two in the middle. And I don't wanna lose that. Gravity is your friend. So there's also a layer of double-stick tape underneath the spoiler that holds it to the deck lid. I'm gonna use a plastic tool and a little bit of perseverance and slowly work my way from one side to the other to pry this off. Now that we've broken all the 3M loose, we can remove our spoiler.Okay. So as you can see, there's a little bit of double-stick tape residue left on the trunk lid. I'm gonna use an eraser wheel with a drill, but if you don't have one of these at home, what you can do is use a little bit of adhesive remover and some elbow grease. It'll take a little bit longer, but it will get the job done. Now that I've got the heavy residue off, I can go back with microfiber and some adhesive remover and clean up the rest. Now you can peel off the backing for the bolt hole gaskets and install them to the bottom of the spoiler. Before I install the spoiler to the deck lid, I'm going to peel back the corners of the double-stick adhesive to make it easier for me to get everything lined up.So now we're ready to install the spoiler to the deck lid. This part's a little bit tricky. You have to line up the four holes with the four holes in the trunk lid, hold it in place, and get the screws started. You have to be very careful when doing this, otherwise you can drop the screws inside the deck lid and you can't get them out. Now that I have all four screws very loosely started, I can close the trunk lid, make sure everything's lined up and start peeling my tape and applying some pressure. And now I can apply some light pressure and finally go back and tighten up your four screws. Now just throw your interior panel back in and you're good to go.And that's gonna wrap up this review and install of the SpeedForm GT350 Style Track Pack Rear Spoiler for your '15 to 2020 Mustang. Thanks for watching, and for all things Mustang, keep it right here at

      Product Information

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


      • Aggressive Appearance Upgrade
      • Matches Gloss Shadow Black (G1) Factory Paint
      • Durable, Lightweight ABS Construction
      • Clean Cutting-Edge GT350 Track Pack Styling
      • Drilling Required for Installation, See Details Below
      • Does NOT Cover Holes Left by GT/CS Spoilers
      • Fits 2015-2020 Mustang Models


      GT350 Track Pack Styling. Give your 2015-2020 Mustang a stylish appearance upgrade with improved aerodynamics by installing a SpeedForm GT350 Style Track Pack Rear Spoiler. This fantastic-looking Rear Spoiler, which comes already painted in Gloss Shadow Black, will add aggressive track appeal to your S550 Mustang.

      Gloss Shadow Black. This SpeedForm GT350 Style Track Pack Rear Spoiler comes already completed in the factory correct Gloss Shadow Black (G1) color. Using the newest Color Match technology this Rear Spoiler will match your Mustang's factory exterior color perfectly.

      Superior Quality. Manufactured from blow molded acrylonitrile butadiene styrene (ABS) material, this GT350 Style Rear Spoiler was made to OEM specifications for a perfect fit. ABS is an extremely strong material known for its light-weight, superior durability and impact resistance. Unlike some other rear wing options on the market, this GT350 Spoiler won't chip or crack like fiberglass and will last for many years to come.

      Drilling May Be Required. This GT350 Rear Spoiler was specifically designed to reuse the existing holes left in the deck lid by the stock wing (if so equipped) on the Fastback model. The spoiler installs easily with a combination of hardware and 3M automotive bonding tape, a drilling template is included for the Mustangs not equipped with a factory installed wing. Convertible models equipped with a stock wing will not be able to reuse the factory holes, drilling will still be required for installation.

      Application. This Gloss Shadow Black SpeedForm GT350 Style Track Pack Rear Spoiler is designed to fit all 2015-2020 Mustangs including the V6, EcoBoost, GT GT350 and GT500.

      Application Note. This Rear Spoiler may come in contact with the factory antenna when the trunk is opened on Convertible models.


      Fitment: 2015 2016 2017 2018 2019 2020

      MPN# 406911-G1

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (54)

      Write a Review

      Ratings Summary

      4.5 out of 5 overall rating from 54 customers

      Installation Time: Afternoon

      Installation Cost: $100-$250

      • April 02, 2020

        5 2016 EcoBoost - Mike Installation Time: Less than 1 Hour

        Exceeded my expectations! Looks amazing!!

        This spoiler came very quickly and packaged extremely well. I opted to take it to a local body shop for the install. I had a stock "Blade" spoiler on my Mustang. This spoiler lined right up to the stock holes on the trunk. So, the cost to remove the blade spoiler and install the SpeedForm GT350 Style Track Pack Spoiler was only $125. The profile of the car changed instantly with this mod.

        Helpful (0)
      • April 01, 2020

        4 2019 GT - olllllllo Installation Time: Less than 1 Hour

        Very sharp

        Looks great, even though I had a factory spoiler, the hole placement was off. Had to use supplied templates and drill, but it only took 10 minutes extra. Really beefs up the car!

        Helpful (0)
      • March 25, 2020

        1 2017 GT - Luisgsxr Installation Time: Less than 1 Hour

        Not good product

        Horrible fitment came in severely damage box was ripped up

        Helpful (0)
      • March 22, 2020

        5 2018 EcoBoost - Gonzilla56

        Looks great!

        I had been looking for a replacement spoiler for my 18 ecoboost for some time as I did not like the factory blade like spoiler. I found this gt350 speedform spoiler and I had to purchase it. Great price and looked great too! When I got the spoiler in I was happy with what I got for the price, yes the paint can scratch off easily so be careful when installing. Overall I am happy with the spoiler. No real complaints here. Install took me about 1 1/2 and it was on and looking great!

        Helpful (0)
      • March 21, 2020

        4 2018 GT - RaulG Installation Time: Less than 1 Hour

        Good looking

        Easy install great product shipping was quick. Finish on wing is good, felt like oem part

        Helpful (0)
      • March 16, 2020

        5 2016 EcoBoost - Bjohns67 Installation Time: Less than 1 Hour

        Spoiler is Awesome!

        I installed this myself with no experience and other than a) losing a socket and small washer inside the hood (which I removed after buying a $20 magnet parts remover) and b) not holding it tight while I tightened one side and it fell and chipped off a very small piece of plexi (which I simply painted black and I can't see it), it was easy and changed the way my car looks. For the money, it was a killer upgrade to the aggressive look. But also not over the top like some spoilers.

        Helpful (0)
      • March 08, 2020

        4 2015 GT - Nathans550 Installation Time: Afternoon

        Awesome finish

        Great fit, shipped fast, and looks good the only problem I had was it shipped without drilling templates so I just made my own.

        Helpful (0)
      • March 06, 2020

        4 2018 EcoBoost - SteveL Installation Time: Afternoon

        Love the Look

        Let me start by saying I love the look of this on the car. The paint looks good and it really makes my back end pop, much more than the factory blade. I do wish that the install template had actually come with i, as I have the convertible and had to drill. Ultimately that was just a minor inconvenience. The missing star in my rating only stems from the final fitment of the spoiler. There is about a 1/4” lift off of the trunk lid at either end of the spoiler that is preventing proper adhesion of the 3m tape. I am hoping that a little summer heat will relax the molded plastic enough to get some clamps on it and bring the tape into contact with the lid. Until then, I’m the only person who has noticed this small gap, so I’ll let it ride as is.

        Helpful (0)
      • February 26, 2020

        5 2016 V6 - JusSTANG16 Installation Time: Afternoon

        Great piece

        Looks great not to big not to small, fits perfect took about 2 hours for installation start to finish make sure the glue is all off and cleaned.

        Helpful (0)
      • February 25, 2020

        3 2016 GT - KennethS Installation Time: Afternoon

        Installation Video was Misleading But looks Nice!

        So I watched the video for the install and it states that if you have a factory spoiler on, all you would need to do was unbolt it, remove it, clean off the adhesive, and this spoiler would utilize the existing bolt holes to mount. That was not the case for me as none of the holes lined up. The instructions that came with the spoiler said that there was a hole template to properly drill holes for this spoiler. That was not in the packaging. Basically, I had to line up the spoiler and determine where the new holes would be. I drilled the holes then mounted the spoiler to the rear deck in the same manner as the AM video. The spoiler looks great on the car, but it took me about 2 hours to do the install, which was longer than I allowed myself (did it during my lunch break).

        Helpful (0)

      Questions & Answers (16 answers)

      5 Top Rated Questions

      Which is darker/ matches the gloss deck lid? The shadow black or gloss black? Whats the difference in color for both? thank you

      • Gloss black (UA) is a closer match. The Shadow Black has a metallic flake to it.

      Helpful (2)

      I have a 2018 ecoboost. with factory spoiler. If the factory spoiler is removed will the holes on the new spoiler line up to install without any drilling ?

      • lf you have a fastback model, you will be reusing the holes from the factory spoiler. lf you have a convertible model, drilling is required.

      Helpful (1)

      Does the spoiler come with the required bolts/screws needed to be installed ?

      • Yes, all installation hardware will be included.

      Helpful (0)

      I have a 2020 GT Convertible on order, due in about 2-3 weeks ..They don't come with a spoiler at all, but have the antenna on the top of the passenger side rear quarter panel.. I have seen that the GT/CS does have a spoiler that clears the antenna. Will this fit without hitting the antenna? If not, which aftermarket spoiler is suggested? Thanks

      Would I need to drill holes for my 2018 GT with the PP with this spoiler? Will this spoiler line up with my preexisting holes left from my PP spoiler?

      • This will line up with Performance Package spoiler holes on Fastback models. Additional drilling would not be required.

      Helpful (0)
      Post Your Question
      10 More Questions
      The color says gloss shadow black, so I would assume it would match the shadow black color of my 2019 mustang? 1 answer
      Do you know the thread pitch/ size for the hardware screws? One of them fell in my trunk and I can’t get it out 1 answer
      Does it come with a template for drilling for fastback models? 1 answer
      If I have a 16 GT PP and the factory spoiler delete option, would drilling be required to install also does it come with hardware if drilling is required? 0 answer
      I have a 2015 GT with a factory spoiler. Will this spoiler fit the factory holes or will drilling be necessary? 0 answer
      I know this is a replica of the GT350 spoiler but I was wanting to order the zl1 addons wicker bill to put on. Should it fit the same? 1 answer
      How close will this (UA paint) match a 2017 gt with G1 shadow black paint? 1 answer
      In the description it states the spoiler MAY come in contact on convertible models. I have a '19 Mustang GT prem. convertible. So, will it or will it not come in contact with the antenna? If it just snubs it thats no problem but if it hits midway the antenna that could be an issue. If it does hit the antenna do you have one similar to this in gloss black that misses the antenna entirely? 1 answer
      What is the difference between this one and the $400 dollar prepainted one? Other than the obvious that this comes in only black. 1 answer
      If I were to put this on a California Special, are the holes from the original CS spoiler exposed and in view or will this track pack spoiler hide them? 1 answer

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Rear Spoiler
      • Mounting Hardware