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SpeedForm Rear GT/CS Style Spoiler - Unpainted (10-14 All)

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  • Item 13255-00
  • MPN# 13255-00

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    Features, Video & Details

    • Bold Modern Styling
    • Superior Quality
    • ABS Plastic Construction
    • Mounts in Holes Left by Factory Spoiler
    • Fits All 2010-2014 Mustangs

    Review & Installation Video

    Review & Install Video

    Hey I’m Justin with, and I’m checking out the Mustang GT California special spoiler fitting all 2010 and newer Mustangs, available either unpainted or pre painted. This spoiler is identical to the pedestal style spoiler found on the 2011 California special, this is a special edition Mustang that originated back in the 60’s, then later resurfaced in 07 for a few years, and then later in 2011. These limited run cars came with some pretty trick styling one of which included this spoiler. As for the spoiler itself, you can see why it gets that pedestal name, as opposed to a GTR or GT500 spoiler which mounts flush to the trunk lid, the California special is raised like a pedestal, thanks to the 4 legs or risers that give it its own unique look. Build wise we are looking at a full ABS plastic construction, which is going to be equal parts lightweight and durable. As I mentioned earlier, there are a couple of different options when it comes to picking the spoiler up, there is an unpainted option which I have here, obviously you’ll need to have this thing prepped and painted before installing on your ride, or on the other hand, you can spring for a pre painted color matched option for a few bucks more, which we have install on our 2011 GT behind me. The color matched option is sprayed right here at AmericanMuscle headquarters, using the same base and clear coat Ford uses in their factories, so basically you can expect a perfect color match for your ride. While the cover does install using the 4 existing holes left by your factory spoiler, you will need to drill 4 additional holes to get the California special bolted up. If this isn’t something you feel comfortable doing, then your local body shop should be willing to help you out, however if you are going to tackle it, take your time, use the included alignment strip, and you should be able to knock everything out in about 2 hours. So if you’re a big fan of the California special appearance package, and you like the looks of a more pronounced pedestal spoiler, then this spoiler option would make a great choice for your ride.

    Bold Modern Styling. Add the bold modern styling of the SpeedForm California Special GT-CS Mustang to your very own Pony with a Pedestal Style Spoiler from AmericanMuscle. This rear wing spoiler features a four pedestal mount design for aggressive good looks.

    Superior Quality. Constructed in one-piece from Blow Molded acrylonitrile butadiene styrene (ABS) material for it's lightweight and extreme durability, this spoiler will not chip or crack like fiberglass.

    Limited Drilling Required. This SpeedForm Pedestal Style Mustang Spoiler mounts in four of the existing holes left by the factory rear wing spoiler, so you only need to drill four more holes for a relatively easy installation.

    Application. This SpeedForm Rear Pedestal Style Spoiler is specifically designed to fit both the coupe and convertible 2010-2014 Ford Mustangs, including the V6, GT, Boss, and Shelby GT500. This Rear Pedestal Style Mustang Spoiler is not compatible with rear camera equipped vehicles.

    Technical Notes. The Pedestal Spoiler ships unpainted. We recommended test fitting all products before they are painted. AmericanMuscle also recommends professional installation of all body parts.

    Fitment: 2010 2011 2012 2013 2014 Details

    What's in the Box
    • (1) Rear Spoiler
    • (8) Screws
    • (8) Washers
    • (4) Foam rubber gaskets
    Installation Info
    Tech Specs
    Will it fit my Mustang?
    • Boss 302 - 12, 13
    • GT - 10, 11, 12, 13, 14
    • GT500 - 10, 11, 12, 13, 14
    • V6 - 10, 11, 12, 13, 14

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    31 Questions / 11 Answers

    Ask a Question

    Do you paint the spoiler "pillars" as well? I was hoping you guys would paint it like factory with the pillars left matte black plastic as opposed to painted in body color, any help on this matter would be awesome!


    • This spoiler comes fully painted, including the pillars. Hope this helps!


    Show 2 more answers Helpful (6)

    Will the hole for my back up camera be visible with gtcs spoiler?


    • The SpeedForm GT/CS Style Spoiler is not compatible with rear camera equipped vehicles.


    Helpful (1)

    Does this spoiler come with all hardware and templets for a trunk lid that has no pre-drilled holes by the factory


    • It comes with 8 screws and 8 washers. There is no template, just 8 strips of small cardboard that you can attach to the spoiler and then line up on your car. You will have to drill all 8 holes yourself.


    Show 3 more answers Helpful (1)

    Is this compatible with the 2014 Mustang GT trunk lid? Most of the others don't cover existing holes, etc. This product description doesn't specifically address GT fitment either way.


    • The SpeedForm GT/CS Style Spoiler will utilize your existing spoiler mounting holes, so there is no need to fill or cover these holes, however 4 additional holes will need to be drilled to complete the installation.

      Rob D

    Helpful (0)

    does the unpainted version come in black?


    • The SpeedForm Rear GT/CS Style Spoiler will come in an unpainted, grey gel coat. This is not a UV resistant finish, and will require prep, primer, and paint prior to install.

      Rob D

    Helpful (0)

    What’s th chance of trunk leaking after installing a rear spoiler on my mustang i don’t have a spoiler at all right now


    • The SpeedForm GT/CS Style Spoiler should not leak at all. It comes with foam gaskets to ensure a water tight seal.


    Helpful (0)

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    Customer Reviews (100+) Write a Review

    Overall Rating 4.7

    out of 5 stars

    Installation Time:Full Day

    Installation Cost:$100-$250

    • Fit 4.583333 4.6
    • Appearance 4.810606 4.8
    • Bang For Your Buck 4.643939 4.6

    • 4/5

      Installation Time: Afternoon

      June 29, 2013

      Review from SpeedForm GT/CS Style Spoiler - Pre-painted (10-14 All)

      Looks Awsome

      The GT/CS spoiler looks great. With the help of my bro-in law it took about 3 hours to install. My Mustang didn't have a factory spoiler on it. We had to drill all 8 holes for the fitment. I wish that the instructions would have covered this scenario. It wasn't difficult to do it just took extra time to measure and align the spoiler.


      Year: 2014 Submodel: V6 Augusta, GA, USA

      Helpful (9)

    • 3/5

      Installation Time: Afternoon

      May 22, 2013

      things you will deal with to install

      First out of the box there were no installation instructions. The fit between the bottom of the wing and the trunk deck was not the very accurate. the two parts had gaps up to about .080 thousandths. (been a machinist for 30 years so I measured the gaps between the two parts.) The foam pads included took up the gaps but can be seen when finished. The bottom of 2 of the pedestals had drops of paint sticking up making the fit worse. I used a sharp knife to cut the top of the bumps off and improve the fit a bit. Next the 6 mm x 1 bolts did not thread into the holes in the bottom of the wing. I had to use a tap to clean out the paint and other materials left over from painting. be careful not to cross thread the tap in the holes. The method used to locate the holes on the trunk worked very well. That was nice. very easy to stick onto the bottom of the wing pedestals, and then tape them down to the trunk once the wing was aligned on the trunk .Be careful when lifting the wing not to pull off the strips. Before I purchased I asked if I would need to drill the inside sheet metal reinforcing sheet so I could install bolts from the inside. I was told no. Actually 4 of the holes needed to be drilled through both skins, and then the inside skin had to be enlarged so the bolt and washer would go through and tighten up on the back of the outside sheet metal skin. This was not fun. The only way I could figure out how to do this was to use a stepped sheet metal drill bit. The problem was the two skins were too close together to go on in with the bit without hitting the outside sheet. The two sheets on the outside holes are only about 5/8 apart. So as I drilled from size to size I cut off the end of the bit with a cut off wheel. This way I could move from step to step with out drilling into the outside sheet metal. It ruined the bit but I got the holes enlarged. I used some auto body sealer puddy around the bolt threads next to the bolt heads to seal the trunk. ( no sealer was included with the wing.To keep the screws from falling off getting them through the inside skin of the trunk deck I put a small amount of puddy in the Philips pocket in the bolt and the screw driver stuck to the bolt and it was easy to get the bolt started. The wing looks good on the car but the foam strips do show up. Instructions would have been good. It would have helped overcome the problems with the inside sheet metal. I would recommend this product but it isn't just drilling the holes and slapping it on. I kept wondering how the manufacturer dealt with enlarging the holes in the inside sheet when installing the wing. respectfully Dale


      Year: 2010 Submodel: GT Oregon

      Helpful (7)

    • 4/5

      Installation Time: Afternoon

      May 07, 2013

      Review from SpeedForm GT/CS Style Spoiler - Pre-painted (10-14 All)


      the California spoiler looks amazing and the paint was done excellent. I work at a ford dealer and when I install spoilers they come with template so you know where to drill the holes. I think that would have been a real time saver when installing this spoiler. Send a template with this spoiler!!


      Year: 2012 Submodel: GT Cottam, Kingsville, ON N0R, Canada

      Helpful (6)

    • 4/5

      Installation Time: Afternoon

      March 14, 2013

      Review from SpeedForm GT/CS Style Spoiler - Pre-painted (10-14 All)

      Be different

      Product is well built. Mine came unpainted(would recommed painted if you have the cash) You will still need to drill a few holes (2013 stang)So remove the pockets you just added like I did put to side a paper or blanket in trunk makes clean up easy.Just set on trunk for approx mount area then remove put masking tape on trunk lid where the holes need to go.Place spoiler on the masking tape pencil the area(measure twice for proper location) remove spoiler take gaskets to mark where the holes need to be really check they hole making so they are correct.Start with a small drill to act as the punch center then drill. You will need 4 bolt a little longer when you get ready to install because of the trunk re-enforcement bars (remember metric) when you install you could use a litle locktite remember not to over tighten as to not break out the nuts from spoiler have fun and enjoy oh don't forget to put back your trunk rug and pockets


      Year: 2013 Submodel: V6 texas

      Helpful (6)

    • 5/5

      Installation Time: Afternoon

      September 11, 2012

      Most aggressive looking spoiler.

      This is a probably one of the nicest spoilers I have seen. It fits beautifully in place and is perfectly molded to the body shape. Pro install highly recommended.


      Year: 2011 Submodel: V6 Miami

      Helpful (6)

    • 5/5

      Installation Time: Afternoon

      August 19, 2013

      Review from SpeedForm GT/CS Style Spoiler - Pre-painted (10-14 All)

      Going back to Cali

      This spoiler is SWEET!!! Install was smooth, just take your time. When removing your old spoiler, make sure you clean the dirt from the crevices under the factory spoiler as dirt can be trapped in there and scratch your paint. Take your time, double check your marks before you drill and when bolting on the new spoiler be careful not to drop the bolts in the holes! If you're nervous about installing this yourself, most body shops will charge about $100 to install. it may be worth it to you to have professionals install this.


      Year: 2013 Submodel: GT New Jersey

      Helpful (5)

    • 4/5

      Installation Time: Less than 1 Hour

      May 06, 2013

      Review from SpeedForm GT/CS Style Spoiler - Pre-painted (10-14 All)

      Great product/Missing hardware

      Great product and definitely recommend getting painted one, just wish after painting they would have put bolts and gaskets back in box with spoiler. Assume they were more concerned with protecting the paint, which they did very well. Went to store and picked up bolts and washers and made my own gaskets.


      Year: 2013 Submodel: GT

      Helpful (5)

      • Response from AmericanMuscle

        My apologies that the hardware and gaskets were not in your package. If you'd like, we can reimburse you for having to purchase them locally - simply give us a call and we can take care of that for you. In the future, if you ever had an issue such as this, please call us right away so we can ensure the necessary components are shipped right out to you.

        Lisa, Customer Care

    • 4/5

      Installation Time: Less than 1 Hour

      April 18, 2013

      Review from SpeedForm GT/CS Style Spoiler - Pre-painted (10-14 All)

      Looks great

      Super easy to install. 50 minutes and I was done. Unibit really helps. My brother dropped a bolt so now I hear it rolling around ever time I open the trunk. Don’t drop the bolts! Excellent paint job. GET IT!


      Year: 2013 Submodel: GT San Diego

      Helpful (5)

    • 5/5

      July 07, 2011

      Rear GT/CS Spoiler

      This is a must have to give your Stang that unique look. Will absolutely turn everyone's heads as you drive by. My only wish is that they would have drilled front holes in the center post supports to be able to tighten them closer to the trunk. I had it professionally installed on my 2010 red GT, would definately advise it.

      Mike Lecuyer

      Year: 2010 Submodel: GT

      Helpful (5)

    • 5/5

      Installation Time: Afternoon

      March 24, 2014

      Review from SpeedForm GT/CS Style Spoiler - Pre-painted (10-14 All)

      Perfect Appearance Mod but horrible directions

      This took me about 2.5 hours to uninstall my factory spoiler and install the GT/CS spoiler. I ran into a couple problems for example 4 of the screws were too short so I had to drive to Home Depot to get longer ones. Also the template that came with it isn't 100% accurate. The directions kept skipping a couple non-major steps but it would've helped if they were included. Also there is a paint build up on the underside of the spoiler which kind of made me mad but it's completely out of sight so I wasn't tripping on it that much. Lastly the foam pads are clearly visible at the base of each stem which I don't like very much but it's acceptable. Other than that this is one of my most favorite appearance mods I've put on my Stang! It gives such an aggressive and sexy look! I definitely recommend this to anyone who wants their Stang to look super mean and drop dead sexy!!!


      Year: 2010 Submodel: V6 Oceanside, CA, USA

      Helpful (4)

    • 4/5

      Installation Time: Afternoon

      June 08, 2013

      Review from SpeedForm GT/CS Style Spoiler - Pre-painted (10-14 All)

      Looks good but took some engineering on my part...

      The CS wing looked great out of the box with the exception of a few minor scratches on the trailing edge. There was no damage to the bubble wrap so that indicates it got by quality. While I feel that is worth merntion, it wasn't worth returning. It was quickly cured with a Sharpie of similar color. Removing the factory lip spoiler and tape took longer than I anticipated. After marking the hole locations as shown in the instructions, I drilled 1/4" holes as specified. As it turns out, 3/8" holes worked better because trying to line up eight holes is no easy task. The kit came with 8 screws of the same length. Four proved to be too short due to the holes lining up on the trunk lid stiffeners. I cured this by drilling larger holes the same diameter as the factory holes from the inside. I bought a set of fender washers which turned out to be perfect. Two hours later with help from my son I was done and the wing looks great. A full size alignment/drill template would be a great addition to the installation kit at very little cost to American Muscle.


      Year: 2011 Submodel: V6 Cleburne, TX, USA

      Helpful (4)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $100-$250

      August 12, 2012


      Looks great. I paid $165 for paint and install. I deffinately don't regret buying this item.


      Year: 2013 Submodel: V6 Mundelein, IL

      Helpful (4)

    • 4/5

      Installation Time: Afternoon

      May 12, 2017

      Review from SpeedForm GT/CS Style Spoiler - Pre-painted (10-14 All)

      Have a shop put it on.

      Is a bit of a pain to put it on. Save the head ache and have a body shop put it on. Looks great when done right.


      Year: 2014 Submodel: GT

      Helpful (3)

    • 3/5

      Installation Time: Afternoon

      August 23, 2014

      Awesome but low quality

      This spoiler is fantastic in appearance. Painted it matte black and put it on my green gt. Looks way better than I expected. However, the quality is pretty poor. The holes aren't quite even which makes install pretty rough. I would recommend professional installation.


      Year: 2014 Submodel: GT Phoenix, AZ, USA

      Helpful (3)

    • 5/5

      Installation Time: Afternoon

      April 05, 2013

      Review from SpeedForm GT/CS Style Spoiler - Pre-painted (10-14 All)

      Extremely beautiful

      Great spoiler, received it very quickly made my 13' mustang look so much more retro. Enhances the car immensely . Worth every penny


      Year: 2013 Submodel: GT Pittsburgh pa

      Helpful (3)

    • 5/5

      Installation Time: Afternoon

      January 07, 2012

      Great Product!

      This spoiler is awesome! had it painted at a local body shop to match my car. It adds sick styling the the rear end of your stang! The install took some time but it was worth it! Just a side note for all you guys out there that are thinking of installing it yourself, this spoiler does not just use the holes from your factory spoiler(if you had one) you have to drill more holes to install properly! So if you're not comfortable drilling into your trunk you may want to consider having a shop install it! But over all great quality product! The body shop I had paint it said it was one of the best spoilers they've ever painted! They said they usually have to sand the other spoilers they get but this one came smooth with no imperfections and ready to paint!


      Year: 2011 Submodel: V6 Memphis, TN

      Helpful (3)

    • 5/5

      June 29, 2011

      CS Spoiler

      Good quality and SCCA T2 legal.

      Charlie Vehle

      Year: 2012 Submodel: GT

      Helpful (3)

    • 2/5

      Installation Time: Afternoon

      June 12, 2017

      Review from SpeedForm GT/CS Style Spoiler - Pre-painted (10-14 All)

      Nice looking wing with questionable quality

      This definitely added a much more aggressive look to my mustang which I'm really happy about. The install wasn't that bad, It only took about 3 hours since my mustang didn't have any spoiler before so I had to make a template from scratch. As good as this spoiler looks, it seems lower quality than I expected. It's made from ABS plastic which is fine, but after about a week it started to warp (maybe from the heat, but it's barely been above 90 degrees). Now there is a bump/lump in the center of the wing on top. Definitely a little disappointed


      Year: 2011 Submodel: V6

      Helpful (2)

    • 5/5

      Installation Time: Afternoon

      March 18, 2017

      Review from SpeedForm GT/CS Style Spoiler - Pre-painted (10-14 All)

      Love it.

      Taking your time is key. Measure twice and drill once...four times. Just be very careful not to drop your screws into your trunk like I did. Not too hard at all.


      Year: 2014 Submodel: V6

      Helpful (2)

    • 5/5

      Installation Time: Less than 1 Hour

      June 28, 2014

      Review from SpeedForm GT/CS Style Spoiler - Pre-painted (10-14 All)

      GT/CS spoiler 2014 V6

      Great quality product. Perfect paint match! The spoiler's fit doesn't match the contour of the trunk lid when you lay it on top for measuring the holes. Decided to drill 5/16 holes, vice the 1/4 that was recommended in the instructions. This allowed an easier install because without an actual template, the alignment isn't perfect. Also used a M6 1.00 x 20 hex head bolt on each outer pedestal's top hole. The inner framework under the outer edge of the trunk lid is double thick and the screws provided were too short. Take your time, I did it by myself in less than an hour, but would have been easier with another helping hand.


      Year: 2014 Submodel: V6 Northern VA

      Helpful (2)

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