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BMR Front Subframe Chassis Brace - Hammertone (15-19 GT, EcoBoost)

Market Price $181.99 You Save 12% ($22.04)
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  • Item 393966

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    Features, Video & Details

    • Heavy-Duty DOM Steel and Rectangular Tubing
    • Stiffens Factory K-member
    • 100% Bolt-On
    • Minimizes Suspension Deflection
    • No Increase in NVH 
    • Black Hammertone Powder Coated Finish
    • Made in the U.S.A
    • Fits 2015-2019 GT and EcoBoost Mustangs

    Review & Installation Video

    Review & Install Video

    Hey, guys, Stephanie with, here with an overview of this front subframe chassis brace from BMR for the 2015 and newer GT and EcoBoost Mustang. In this video, we're gonna discuss what this brace does and how it's designed to work, the materials and construction, and, of course, the install as well. I'll go into more detail later, but the install for this brace is easy. It's a 100% bolt-on item that you can install with simple hand tools, and it's gonna be a one out of three wrenches on the difficulty meter. The BMR Front Subframe Chassis Brace is gonna be something that you should check out if you're planning on pushing your S550 to the limit and you're looking for a way to increase steering stability and give the K-member some more backing.This brace ties together a few points on the front of the car to support and stiffen the front suspension since there can be some deflection there. And it's gonna be for street performance, drag racing, and any handling application that does not have coaxial on two headers installed. This is for more of an extreme application, and it's not something that you can bolt onto a daily driver and notice right away. If you're looking to simply tighten things up in the front end, you can always check out some other suspension mods, like a sway bar upgrade. The most important thing about this brace is its functionality. It ties into front lower control mounts to the rear legs of the K-member. These areas are good to support, because the factory K-member and the lower control arm mount are very strong right from the factory, but they do still deflect and flex under extreme use. This deflection is gonna take away handling performance. So, if you think you're gonna be pushing your car hard enough to experience some of this deflection, this brace will help with that. That's why this isn't really a brace that you'll be able to bolt onto a daily driver and cruise around town and notice differences in your handling performance right away. This is more for those heavy-duty applications, because the factory components are strong in these areas with deflection only happening under hard driving. The design of this brace, by tying in the lower control arm mount and the rear legs of the K-member, reinforces the major areas of the K-member to reduce the deflection that can happen in these cases. Reduced deflection here means a better steering feel, more stability, whether you're taking corners or even under hard braking. And the good news about a brace like this one here is that, when you tie in these points on the chassis, you reduce deflection and get better handling results, but you aren't going to increase NVH or noise, vibration, and harshness. A lot of times when you go to reduce deflection, you end up taking the road of swapping out soft rubber bushings for more firm bushings, or maybe no bushings at all, but those methods add NVH. A brace like this one here avoids adding NVH but still gets you the result that you want. Now, adding a brace to the K-member like this is going to open up some questions about fitment and, of course, long tube headers are going to be a concern. This brace will work the stock in very nearly all aftermarket systems, including most long tube headers. It will not work with Kooks long tube headers though, so just keep that in mind. If you happen to have a set of Kooks long tubes, you can check out the Steeda brace instead. This brace is also not going to work on the V6 model.As far as materials, this brace is made from a combination of heavy-duty two and a quarter inch steel and one by one and a half inch rectangular tubing that's powder-coated for corrosion resistance. It also has CNC machine build aluminum spacers for you, and it's gonna come with your install hardware, too. Like I said before, this is 100% bolt-on, so it's going to use existing bolt holes. When it comes to price, you can expect to pay a touch below the $150 mark for this brace. There is an option from Steeda that's slightly more expensive than the BMR here, and you can always check that out as well. I will say though, that for close to $100, I'm not sure how you can go wrong here if you're looking to stabilize the front end. Good materials, great construction, the benefit of BMR's proven reputation, and the science behind the product are all positives here.Moving on to the install, like I said earlier, this is a direct fit item, so the install's gonna be straightforward and simple. You're looking at an hour tops in the garage and a one out of three wrenches on the difficulty meter. The job can be done on jack stands if you don't have access to a lift, but as always, a lift will make things easier. Your wheels will need to come off, and you're gonna need to pull the lower control arm bolts. The spacers will go into the subframe and then to the mounting hole, and then you can fit up your brace and reinstall the lower control arm bolts. One thing I will say here is that aligning the bolt holes might require some help from another person. If you have trouble, a second person can pull on the hub and rotor assembly so you can line the bolts up and get them through. The remaining bolts are gonna go into the rear mounting holes with the supplied washers and lock nuts. BMR suggests tightening the front bolts first and then the rear bolts. And they give the required torque rating in the step-by-step install instructions that have pictures as well to help you guys out. Overall, this is a very easy install for anyone.Wrapping things up with the BMR Front Subframe Chassis Brace, this is a brace that's gonna tie together the rear of the K-member and the lower control arm mounting points to provide some front-end stability and less deflection without any added NVH. This is a good mod for any performance vehicle, and it provides more stable handling performance all the way around. As always, I suggest you check it out more online for yourselves right here at

    The Platform Improver. BMR works to ensure your high-performance 2015-2019 Mustang is stable on the track. The front K-member on the Mustang is quite strong straight from the factory, but still tends to flex under extreme use. The BMR Front Sub Frame Chassis Brace increases steering stability and reduces the need to make repeated front alignment changes on your S550 Mustang. Thanks to heavy-duty steel construction and smart engineering, it does this without increasing noise, vibration, or harshness (NVH) in the cabin. Have your cake and eat it, too!

    Reduces Deflection. The BMR Sub Frame Chassis Brace ties the front lower control arms to the rear legs of the K-member, adding stiffness to the whole structure. Deflection under cornering and braking loads is considerably reduced, thus increasing steering feel and alignment stability under load.

    Heavy Duty Construction. BMR Suspension proudly designs and manufactures their Subframe Chassis Brace right here in the USA. BMR's Brace features a triangulated design that ties key structural points together for an extremely rigid frame. This Subframe Chassis Brace is constructed from heavy duty 2-1/4" DOM steel and 1" x 1.5" rectangular tubing for exceptional strength. BMR then completes their Brace in a durable black hammertone powder coated finish for impressive good looks and long lasting corrosion resistance.

    Easy Installation. Installation is 100% bolt-on and all necessary hardware is included. A lift helps, but installation can be achieved with jack stands and a good socket set.

    Application. This hammertone BMR Front Subframe Chassis is specifically designed to fit on the 2015-2019 GT and EcoBoost Mustangs. This Brace does not fit on the V6 and GT350 models.

    Technical Note. This Subframe Chassis Brace is not compatible on the GT models equipped with Kooks Long Tube Headers.

    Fitment: 2015 2016 2017 2018 2019 Details

    MPN# CB006H

    CA Residents: WARNING: Cancer and Reproductive Harm -

    What's in the Box
    • (1) Chassis Brace
    • Hardware
    Installation Info
    Will it fit my Mustang?

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    Questions & Answers (7)

    5 Top Rated Questions

    Will the BMR brace work with the top mount Hellion kit?

    Will this fit a convertible?

    • This is compatible with convertible models.

    Helpful (0)

    Will this work with Stainless Power Headers or will all long-tubes be an issue for this part?

    • Yes, this brace will work with the stainless power headers on the GT Mustang. The only headers that will not clear with this part are the Kooks headers for the GT model Mustang.

    Helpful (0)

    will this brace fit with roush long tube headers ?

    • Unfortunately since we do not offer the Roush Long tubes, we have not test fit these parts together, however, based on fitment data from other Long tube header brands, we do not believe the would allow adequate clearance for the Roush Long Tubes.

    Helpful (0)

    Will this (or the Steeda version) do anything to help dampen the inherent shimmy in the convertible for daily driving? We already have BMR jacking rails installed and they seem to have helped some, but would like to stiffen it up even more.

    • The BMR Front Subframe Chassis Brace is meant to stiffen the factory K-member which indeed would help with the shimmy in the convertibles. We also recommend sub frame braces and sway bars to help with the shimmy as well.

    Helpful (0)
    Post Your Question
    2 More Questions
    Will this work with the Steeda Jacking Rails installed? 1 answer
    Is this essentially the same thing as the Steeda G-Trac brace? (so if you have one you don't need the other). Thanks! 1 answer

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    Customer Reviews (12) Write a Review

    Overall Rating 4.6

    out of 5 stars

    • 5/5

      February 09, 2019

      Easy install

      Material and welds seem very strong. I also like how it connects to the lower portion of the control arm unlike the Steeda. Ground clearance also it really good. Install is pretty simple but I would suggest getting a small pry bar to bend/pry out the OEM punch out debris that is within the K member. Took a min to bend then free to get the spacer in. Other than that not really hard at all.


      Year: 2017 Submodel: GT

      Helpful (3)

    • 4/5

      October 11, 2018

      BMR front Chassis Brace

      The BMR brace for the 2018 GT 10 Speed auto on my car was hitting the trans lines and causing it to virbrate noise back into car and also the fluid vibration was causing the trans to shift strange... Took car to Ford for a bad trans and was told they heard the noise and can't find the issue.. I started taking off any mods. to make sure and when we came to the BMR brace that was it..Took it off found the marks on both and no more noise and trans shifts perfect again... I will say that you can adjust the lines not to hit, just want ed to put this out here in case anyone else came into this issue. Great Product just need to make sure it's not rubbing...


      Year: 2018 Submodel: GT

      Helpful (8)

    • 5/5

      August 21, 2018


      Took about 2 hours to install on 2016 GT because the front frame rails had a little extra lip on the inside when the holes were punched from the factory. Had to use a large screw driver to bend them to get the inside rail bushings to line up. It was same on both sides. Lift would have made it super easy but had to use floor Jack stands. If that's the case, ask a buddy to help to allow one to hold the part in place while the other puts the bolts through.


      Year: 2016 Submodel: GT

      Helpful (3)

    • 5/5

      July 17, 2018

      5.0 Handle improve

      Car rides better at high speeds and taking corner with this BMR sudframe brace


      Year: 2016 Submodel: GT

      Helpful (6)

    • 5/5

      May 23, 2018

      This tied it all together!

      I had BMR sway bars and Roush coilovers already installed on a GT performance pack, but before I had this installed the car had front end body roll while cornering. This single part made all the difference. Hard turns in canyon corners are tight and secure and I no longer feel like I need to hold back white knuckling it. The car stays level. Amazing how one piece can make such an impact on the the Mustangs handling. A must buy to all those on the fence, you'll wonder why you didn't sooner like myself.


      Year: 2017 Submodel: GT

      Helpful (7)

    • 1/5

      May 15, 2018

      Don’t buy!!

      This brace was a pain to install and pretty sure mounting to my front suspension has messed up my suspension. The Steeda brace doesn’t mount to your front suspension and if I had done more research I would have bought theirs.


      Year: 2016 Submodel: GT350

      Helpful (6)

    • 5/5

      March 13, 2018

      Really ties the front end together!

      Doesn’t affect daily driving whatsoever, but when you really dive in the corners the whole front end really stiffens up. Took maybe 15 minutes to install on a lift.


      Year: 2017 Submodel: GT

      Helpful (6)

    • 5/5

      March 10, 2018

      Does more than you’d think

      Subframe brace is a great piece to stiffen the front end especially if you’ve added a supercharger which required removal of the stock strut tower brace.


      Year: 2017 Submodel: GT

      Helpful (7)

    • 5/5

      January 11, 2018


      Huge difference makes the front end extremely stiff... almost completely eliminates any front roll Paired with steeda sub frames and Sr performance coilover Car feels like it's on rails!!!


      Year: 2017 Submodel: GT

      Helpful (8)

    • 5/5

      June 24, 2017

      Much tighter front end

      Nice fit and finish, easy install, and definitely reduces front deflection. Paired with rear bushing lockout, the car is much tighter and more confident now. Very pleased.


      Year: 2016 Submodel: GT

      Helpful (8)

    • 5/5

      February 24, 2017


      This brace is easy to install and does what it says it will. Combined with my SR Lowering Springs and the Mishimoto strut tower brace and the Coyote 1" Wheel spacers, my S550 front-end is tight, stiff. What a difference from stock.


      Year: 2015 Submodel: EcoBoost

      Helpful (9)

    • 5/5

      November 14, 2016


      Awesome piece. really makes the ride feel more sturdy and safe.


      Year: 2016 Submodel: GT

      Helpful (8)

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