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Steeda Extreme G-Trac K-Member Brace (15-18 GT, EcoBoost, V6)

Market Price $184.99 You Save 11% ($20.04)
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$164.95

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  • Item 387540
  • MPN# 555-5532

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    Features & Details

    • Reduces Chassis Flex
    • Improves Handling Performance
    • Tubular Chromoly Steel Construction
    • Black Wrinkle Powder Coat Finish
    • Direct Bolt-On Upgrade
    • Clears Aftermarket Long Tube Headers
    • Fits 2015-2018 Mustang GT, EcoBoost and V6 Models
    Reduce Body and Chassis Flex. Eliminate power robbing body flex and improve the handling performance of your S550 Mustang with a Steeda Extreme G-Trac K-Member Crossbrace. Steeda engineered their G-Trac Brace to help strengthen the connection between the control arm mounts and the rear portion of the front sub frame for more effective stiffening that doesn't change the suspension geometry during high cornering or chassis loads.

    Bolt-on Design. The Steeda Extreme G-Trac Mustang K-Member Brace bolts up using existing factory mounting points with no welding, cutting or extra modifications required for a straight forward bolt-on installation.

    Tubular Steel Construction. Made in the USA from tubular 4130 chromoly steel for superior strength, this Steeda Extreme G-Trac K-Member Brace is completed in a classic black wrinkle powder coat finish for long lasting durability and corrosion resistance.

    Application. This Steeda Extreme G-Trac K-Member Brace is designed to fit all 2015-2018 Mustangs, including the V6, EcoBoost and GT models and will clear aftermarket long tube headers.

    Fitment: 2015 2016 2017 2018 Details

    What's in the Box
    • (1) K-Member Crossbrace
    • Installation hardware
    Installation Info
    Tech Specs
    Will it fit my Mustang?

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    8 Questions / 8 Answers

    Ask a Question

    Will this work with corsa headers?

    EricV

    • The Steeda Extreme G-Trac K-Member Brace will not clear Corsa Long Tube Headers.

      AMRobD

    Helpful (1)

    does this really fit the gt350 similar brace by BMR does not

    KristopherM

    • This Steeda Extreme G-Trac K-Member Brace does not fit GT350's or GT350R's.

      AMJEFF

    Helpful (1)

    Will be purchasing a Whipple Stage 1 shortly but concerned about losing the strut tower brace since my car is a 2015 GT convertible. Will this K-member brace fit on a rag top and if so, will it help counteract the loss of the tower brace?

    RichM

    • Yes, The Steeda Extreme G-Trac K-Member Brace will indeed fit your 2015 GT Convertible. The brace will definitely add support to the front end of the Mustang.

      ChrisAM

    Helpful (1)

    Will this brace fit with Stainless Power longtube headers?

    DanielP

    • Yes, this Steeda part will clear most long tube headers and will work with the Stainless Power long tube headers.

      AMJalisaB

    Helpful (0)

    What prevents this from fitting on a GT350? Is the 2 point G trac brace the only option on a GT350?

    BenP

    • The Steeda Extreme G-Trac K-Member Brace is designed specific for the GT, V6 and Ecoboost and will not fit GT350 models due to changes in bracing. Steeda has designed a separate part, 555-5533, which does fit on GT350 models. This part is linked below: https://www.americanmuscle.com/steeda-ultralite-2-point-g-trac-brace-15117.html

      AMRobD

    Helpful (0)

    what if I lost the hardware kit and needed a new one?? Have the brace, but lost the bag with the bolts and spacers in a move. How do I fix this???

    BenjaminR

    • Give us a call with your order number and I'm sure we could get you out a new hardware kit.

      Pat K

    Helpful (0)

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    Customer Reviews (26) Write a Review

    Overall Rating 4.3

    out of 5 stars

    Installation Time:Less than 1 Hour

    Installation Cost:0-$100

    • Handling Improvement 4.36 4.4
    • Fit 4.08 4.1
    • Bang For Your Buck 4.08 4.1



    • 5/5

      Installation Time: Less than 1 Hour

      July 10, 2018

      Noticable improvement

      I used my 15' Mystang GT track pack car for auto cross and I just enjoy a firm chassis, this was a noticable improvement, I also put on the steeda jacking rails and irs braces and the whole combo was very nice

      Rick

      Year: 2003 Submodel: Cobra

      Helpful (0)

    • 5/5

      July 07, 2018

      Not for the A10

      Was really hoping to box the front-end in with this and the strut-brace, but the main crossmember is about a dime's width from the A10's hard-lines - and there will be some shifting under acceleration and deceleration. Tried using a stack of fender washers to give some room, but that just would put the lateral stress on the welds and not the tubing, so I had to return it. 5 stars for the quality of the piece, though. Manual users should definitely get this.

      NOSS

      Year: 2018 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Less than 1 Hour

      July 02, 2018

      Hanging in the corner

      Man what a difference the k member makes car handles so much better.

      Frank

      Year: 2017 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Less than 1 Hour

      May 27, 2018

      Great addition

      The Steeda K-member brace fit perfect, and really tightened up the front of my car. I accelerate on freeway on-ramps without feeling the front end flex at all. I easily pulled away from a BMW M-3 that thought he could keep up with an American sports car. Next on the list are the Steeda sway bars and billet mounts.

      RaifS

      Year: 2018 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: 0-$100

      May 20, 2018

      Instantly feel the difference. Love it.

      This was the 2nd suspension part added to my 15 mustang gt and all I have to say is that wow u can actually feel the difference once getting it out on. Made my front end alot stiffer and helps most on high speeds. Great add on and worth the money.

      Matrix

      Year: 2015 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      May 18, 2018

      Road course ready

      To add to the previous suspension work, eibach sportline springs and hub centric spacers, I eliminated the famous IRS wheel hop with STEEDA rear sub-frame brace. Enjoyed that so much it was only fitting to install the G-Trac K-Member Brace up front, with the adjustable camber bolts up front and then an alignment, this GT is on rails.

      RobertT

      Year: 2016 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      April 10, 2018

      Awesome

      This g-track does what it says, I have a gtpp with a factory strut tower brace, but thought why not go a little more. It took me an hour total time to install and it was straight forward no issues. I do notice the difference. Next up is front and rear seat bars.

      MatthewB

      Year: 2017 Submodel: GT

      Helpful (1)

    • 4/5

      March 28, 2018

      Works with corsa headers

      I installed with this with my corsa headers and cleared

      EricV

      Year: 2016 Submodel: GT

      Helpful (1)

    • 4/5

      Installation Time: Less than 1 Hour

      February 06, 2018

      Easy install

      Haven't driven the car that much to tell a difference but everything lines up right on so it's super easy to put on.

      RyanA

      Year: 2015 Submodel: GT

      Helpful (3)

    • 5/5

      Installation Time: Less than 1 Hour

      November 23, 2017

      Brace Yourself!

      This Steeda Extreme G-Track K-Member Brace that I purchased at American Muscle does everything that Steeda and American Muscle claims it will do. You will notice the difference in your ride the first time you go into that corner. There was very little tweaking required during install, almost a perfect fit. One of the best upgrades you can do is to install this product.

      Beachbum

      Year: 2017 Submodel: EcoBoost

      Helpful (5)

    • 3/5

      Installation Time: Less than 1 Hour

      July 24, 2017

      G track

      Very easy to install..shore up front end nicely.. Will recommend

      DavidW

      Year: 2015 Submodel: GT

      Helpful (4)

    • 5/5

      July 13, 2017

      Great fit

      Installed easy 123 done. Car drives great and feels tight.

      MarkH

      Year: 2016 Submodel: GT

      Helpful (3)

    • 5/5

      Installation Time: Afternoon

      June 26, 2017

      Tightens things up

      Installed over the weekend. My subframe didn't have the tabs but did have the nuts installed. One was not square and doubled the installation trying to get the bolt in. Once in torqued everyting down and was ready to drive. Feels much tighter up front now. No additional harshness out of the suspension.

      Sunstreaker

      Year: 2015 Submodel: GT

      Helpful (4)

    • 5/5

      Installation Time: Less than 1 Hour

      May 20, 2017

      Subtle but positive improvement

      This K-member brace provides a decent improvement to handling. It did not negatively impact the ride quality on my non-pp GT, which was my biggest concern. I expect the effect to be more significant when the strut tower brace is installed. As for installation, with a lift and a helping hand it was very straight forward. Ford did leave the blanks partially attached where the rear spacers go. Using a flat head screwdriver I moved them back and forth 2-3 times and they easily popped off at the narrowest point. Much easier and cleaner than using a dremel to cut it off. Like the instructions say, ford no longer puts the upper threaded portion for the forward bolts, however the kit came with additional spacers and nuts for the forward attachment points. I would recommend attaching the forward points first as the rear points have a little play. I tried attaching the rear first and see why people were using a pry bar. I removed the rear and attached the front and everything fit like a glove. Overall this is a simple installation for a benefit that racers and daily drivers alike can appreciate.

      AdamS

      Year: 2017 Submodel: GT

      Helpful (8)

    • 4/5

      Installation Time: Less than 1 Hour

      March 17, 2017

      2016 GT

      Great Produce as always with Steeda Parts - "BUT" it seems like Ford did not file off the tabs where the circle opening are. NOTE: 2016 owners will need to file off these little tabs with a Dremel tool in order to get the spacer in. Also I found out if you jack your car up only on one side, it will not line up, I was lucky enough to use my friend's car lift, where you can drive onto the ramps and lifts the car evenly. By doing that, the G-Trac Bar lines up perfectly Other than, It tighten up the Front end.

      PmacGT

      Year: 2016 Submodel: GT

      Helpful (5)

    • 2/5

      Installation Time: Less than 1 Hour

      February 16, 2017

      ehhh

      Not the biggest handling improvement modification I've done to the front end. It does make the car feel more connected though, just be ready to scrape every speed bump. Had to wrench it into place as well.

      Mikeb

      Year: 2015 Submodel: V6

      Helpful (4)

    • 3/5

      December 04, 2016

      Like others had to tweek it to get it on

      Like others said in reviews, I too had issues getting it to fit. My 2016 Mustang did not have the pre-installed (aka Ford welded in nuts) so had to use the spacers. Two times they fell off inside the cross member while attempting to get it on. Seems they should mill a recess in them so they are captured some. I ended up using spray can of truck bed liner to hold them on. The spacers go up inside the frame almost impossible to get it on by them only balanced there. Next step would have been super glue or epoxy to hold them there. I DID also have tabs inside the real frame that I had to finish snapping off. Which is where I already had truck bead coating out to spray up on the bare metal where these broke off. I installed at same time as the frame-jacking rails. both products should work but were lighter than I felt they should have been for real structural supports. Mustang is parked for winter so no idea on how they will help performance or cornering. M

      SPIKER

      Year: 2016 Submodel: V6

      Helpful (3)

    • 3/5

      Installation Time: Less than 1 Hour

      November 05, 2016

      Steeda G-Trac

      The G-Trac does work well once you have it on. I had several issues installing this on my 15 GT with the performance pack. 1) The metal sleeves that go in the frame where too tall, I had to grind them down to make them work. I also had the steel tabs in the frame I had to break off. 2) The G-Trac does not line up, I had to use a pry-bar with some force to get the front bolts in. The bolts do hang really low, I don't think I can lower my car now. 3) These are dropped shipped from Steeda so, AM has you call Steeda for help, I'm still waiting.

      QWK93TA

      Year: 2015 Submodel: GT

      Helpful (4)

    • 4/5

      Installation Time: Less than 1 Hour

      October 31, 2016

      good

      Fit is perfect, 2 bolts in kit are way to short so had to come up with 3 bolts of my own. and the spacers with install sticks welded on had to be grinded down to fit inside frame channel.

      TimmyB

      Year: 2016 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      October 27, 2016

      Easy to install, works great!

      This was simple to install. Everything lined right up. The spacers that go inside the frame were different than the ones pictured. They did not have the wire attached and were made of aluminum. Once all the bolts were installed, I torqued them to 60 lb-ft. Just be sure you have a 12mm hex head wrench before you get started. I had to run out and buy one in the middle of the installation. My car has the strut tower brace, so this brace probably isn't necessary, but I figured it wouldn't hurt either. I'm not sure I can feel much of a difference, but I'm sure the difference would be more dramatic on a car without the strut tower brace. Quality seems very good, as is expected with Steeda. Another minor complaint is that Steeda doesn't make all of their suspension components match. The k-member brace matches the jacking rails, but the rear subframe braces are painted silver and don't match at all. As I said, this is minor, since who's going to see the bottom of the car anyway?

      Jay

      Year: 2016 Submodel: GT

      Helpful (3)

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