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J Hook Slotted Rotors - Front Pair (15-19 Standard GT, EcoBoost w/ Performance Pack)

Market Price $408.90 You Save 10% ($40.89)
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$368.01 (pair)

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  • Item 393474

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    Features, Video & Details

    • Improves Braking Power; Increases Initial Bite
    • Directional J Hook Slotted Rotors
    • Dissipates Brake Dust, Gasses and Moisture
    • Vented Vane Design
    • Durable Clear Zinc Plated Finish
    • Direct Fit Replacement Upgrade
    • Front Pair - Driver and Passenger Side Included
    • Fits 2015-2019 EcoBoost with 4-Piston Performance Package
    • Fits 2015-2019 GT with Standard 4-Piston Calipers

    Review & Installation Video

    Review & Install Video

    Hey, guys, Adam here with Today I'm bringing you a detailed overview of the Stillen J Hook Slotted Rotors for the front of all 2015 and newer GT and performance packed EcoBoost Mustangs. So in this video, I'll be going over the functionality and performance of the Stillen J Hook Slotted Rotors and, of course, the materials and construction. I'll top the video off with the installation which I'll let you know upfront will be a very simple, one out of three wrenches on our difficulty meter, so let's jump right into it. So the front pair of this Stillen J Hook Slotted Rotors I have here today, will be for any 2015 and newer GT and performance packed EcoBoost Mustang owner looking to increase their breaking performance overall with a set of rotors that have an increased initial pad life, thanks to the slotted design and an overall increased appearance as well. Now, we all know that the stock Mustang GT, and of course, the performance packed EcoBoost from the 2015 and newer models have a pretty respectable breaking performance overall. We can all pretty much agree on that. But again, if you like to push your pony to the limits, you might want a little bit of extra bite in their performance and, of course, by doing that you'd upgrade your rotors. Upgrading your stock rotors to a set of J Hook Slotted Rotors I have here, can increase your increase your initial pad life clear from brake dust and gasses and overall increase your performance all together. Of course, that's always a plus and it doesn't hurt your pocket as well, which I'll touch on in just a bit. Overall, if you like to push your pony to its limits and put as much power to the pavement as possible, then you want to definitely have a reliable braking system like the slotted rotor set I have here provides. Now, the reason these rotors are so much more reliable and high-performing is all thanks to the slotted design here from Stillen. These have a J-hook shape a literal J-shaped hook actually engraved in the materials here in a directional design. For very specific placement on the rotor allows for the dissipation of heat and even brake dust which to a better initial pad life. Now, another reason this option from Stillen is a higher-performing brake rotor than your stock option is actually going to be thanks to a vented-vein design. What that basically refers to is the design down here as opposed to your solid stock rotors that can actually expel heat and hotter gasses a lot easier and quicker than the stock options. What that'll basically do is reduce brake fading and allow for better brake performance overall, eventually saving you money in the long run. These rotors are manufactured from the highest quality one-piece cast iron blanks available. They're C&C machined for a perfect fit as well as to install a perfect J-hook design into the materials which is very exclusive to Stillen. They're mill-balanced to reduce any noise vibration or harshness for a perfect all-around fit right on the box. On top of that, they've got a plated zinc coating on top to make sure a long-lasting rust and corrosion resistance is in play. So of course, I want to point out at this point, these rotors are perfect for the guys and girls out there taking their S550 whether it's a GT or performance packed EcoBoost out to the track and hitting the power down at speed. Of course, these'll perform the absolute best at speed while actually taking those hard turns and pushing it to the limits on the track. But they are also perfect for any daily driver or weekend warrior out there on the streets. With that said, if you're looking to pick these up for whatever your application may be, you can pick 'em up for just about 350 bucks for the front set, which I have to say is a pretty respectable price considering the other options on the market. With that said, a lot of the other options on the market consider a slotted rotor design as well as drilled and slotted and even plain old stock options. All of which are going to be a little bit more expensive then these options from Stillen, so this is gonna be a more budget-friendly option. Moving along to the installation portion of the video. Like I said in the very beginning, and a couple of times throughout the video, this will only fit the GT and performance packed EcoBoost Mustangs with the four piston brake calipers installed. Any bigger brake kits that you have on your vehicle, these will unfortunately not fit, but you can check out some of the other options on the market. Now, if this fits your package, then you can tackle this job very simply with a set of ratchet and simple sockets. Now, also with that said, it is highly recommended to tackle your brake pads as well when swapping out any set of rotors. If you are tackling it with your brake pads, you will want to have a c-clamp, brake grease, and of course, brake fluids on hand, as well as a jack and jack stands. Once you've got your Mustang up in the air, whether it's a jack and jack stands or a lift, remove one of your front wheels, unbolt your calipers, and of course, hang it off to the side so it's not dangling on the lines. With your caliper hung off to the side, remove your factory rotor, replace it with your Stillen option we have here. Once that's installed, if you're tackling your brake pads, decompress your brake calipers with your c-clamp, grease up your new brake pads, put them in and put everything back together the same way they came off. Overall, repeat the process for the opposite side. About an hour or two worth of time in the driveway at home, and a one out of three wrenches on out difficulty meter. And just to wrap things up here, if you're the owner of a 2015 or newer GT or EcoBoost or performance packed Mustang, and you're looking to increase your braking performance overall with a sweet set of slotted rotors, you might want to check out the Stillen J-Hook Slotted Rotors for the front of your vehicle, which of course, are available right here at

    Improves Braking Performance. Improve the braking performance of your S550 Mustang by upgrading to a set of Stillen J Hook Slotted Rotors. The unique J Hook Slotted design will give your Pony the extra bite it needs during spirited stops and at hard braking track events. Not only will this Rotor's J slot design increase initial pad bite, but it will also act as a wiper to clean the surface of your rotors and pads to help reduce glazing for optimal braking performance.

    Superior Construction. Stillen manufactures their Brake Rotors from the highest quality one-piece cast iron blanks available. Using the latest CNC equipment these Rotors are precision machined with Stillen's own J hook design. These Rotors are then mill balanced for an exact fit and to reduce any unwanted noise, vibration, and harshness (NVH). Stillen completes their Rotors in a durable clear zinc plated finish to provide long lasting protection against rust and corrosion.

    Vented Vane Design. Stillen J Hook Slotted Rotors feature a traditional straight vane vented design. Vented rotors help to expel heat and hot gasses much quicker than solid rotors. By improving heat dissipation J Hook Slotted Rotors will increase your Mustangs braking performance and reduce the possibility of brake fade.

    Application. This pair of Stillen J Hook Slotted Front Brake Rotors are designed to be a direct fit upgrade replacement for use on 2015-2019 GTs equipped with the standard 4-piston brake calipers, as well as EcoBoost models equipped with the performance pack 4-piston Brembo brake calipers. Driver and passenger side front rotors are included.

    Fitment: 2015 2016 2017 2018 2019 Details

    CA Residents: WARNING: Cancer and Reproductive Harm -

    What's in the Box
    • (1) Driver Side Front Rotor
    • (1) Passenger Side Front Rotor
    Installation Info
    Tech Specs
    Will it fit my Mustang?

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    Customer Reviews (2) Write a Review

    Overall Rating 5

    out of 5 stars

    • Fit 5 5
    • Bang For Your Buck 5 5
    • Stopping Power 5 5

    • 5/5

      June 27, 2017


      Even though these are on the cheaper side of the spectrum, great purchase for the price. Braking is smooth and bites when I need to brake immediately. Easy install as long as you have the right tools and set up. Also makes the wheel dress up look clean and stylish.


      Year: 2015 Submodel: GT

      Helpful (10)

    • 5/5

      September 04, 2016

      Great !!

      Improves Braking. Looks More Aggressive Compared To The Stock Ones !!


      Year: 2016 Submodel: GT

      Helpful (10)

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