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  1. BMR 05-2014 Mustang Heavy Duty Boxed Subframe Connectors (Black Hammertone)
    $299.95

    BMR 2011 Mustang GT Heavy Duty Boxed Subframe Connectors

    Ford's new Mustang platform is a vast improvement over the Fox body with chassis rigidity upgraded over 30%. While this is good news, it is still a uni-body and we are still left with a front and rear subframe that is not connected. BMR subframe connectors take over where the factory left off. Both tubular and boxed designs complete the frame by tying the rear control arm mounts and subframe assembly to the front subframe. The HD boxed subframes go a few steps further by triangulating key structural points together to make a very rigid frame. Available standard in Silver Vein. Additional colors also available by special order.

  2. Boxed subframe connectors are made from heavy duty 1.5"x 2" main tubing and use both 1"x 2" and 1" gussets as well as 3/16" laser cut weld plates.
  3. Can be welded without the need to remove interior carpet.
  4. Reinforces the rear control arm mount.
  5. Retains OE ground clearance.


  6. ***NOTE - Interference with cooler lines on ’13-’14 GT500 Track Pack models may occur.*** Learn More
  • BMR 05-2014 Mustang Tubular Subframe Connectors (Black Hammertone)
    $129.95

    BMR 2011 Mustang GT Tubular Subframe Connectors

    Ford's new Mustang platform is a vast improvement over the Fox body with chassis rigidity upgraded over 30%. While this is good news, it is still a uni-body and we are still left with a front and rear subframe that is not connected. BMR subframe connectors take over where the factory left off. Both tubular and boxed designs complete the frame by tying the rear control arm mounts and subframe assembly to the front subframe. The HD boxed subframes go a few steps further by triangulating key structural points together to make a very rigid frame. Available standard in Silver Vein. Additional colors also available by special order.

  • Tubular subframe connectors are made from 1.75" diameter DOM tubing and 3/16" laser cut mounting plates
  • Can be welded without the need to remove interior carpet.
  • Reinforces the rear control arm mount.
  • Retains OE ground clearance.
  • Learn More
  • BMR 05-2014 Mustang Heavy Duty Boxed Subframe Connectors (Red)
    $299.95

    BMR 2011 Mustang GT Heavy Duty Boxed Subframe Connectors

    Ford's new Mustang platform is a vast improvement over the Fox body with chassis rigidity upgraded over 30%. While this is good news, it is still a uni-body and we are still left with a front and rear subframe that is not connected. BMR subframe connectors take over where the factory left off. Both tubular and boxed designs complete the frame by tying the rear control arm mounts and subframe assembly to the front subframe. The HD boxed subframes go a few steps further by triangulating key structural points together to make a very rigid frame. Available standard in Silver Vein. Additional colors also available by special order.

  • Boxed subframe connectors are made from heavy duty 1.5"x 2" main tubing and use both 1"x 2" and 1" gussets as well as 3/16" laser cut weld plates.
  • Can be welded without the need to remove interior carpet.
  • Reinforces the rear control arm mount.
  • Retains OE ground clearance.


  • ***NOTE - Interference with cooler lines on ’13-’14 GT500 Track Pack models may occur.*** Learn More
  • BMR 05-2014 Mustang Tubular Subframe Connectors (Red)
    $129.95

    BMR 2011 Mustang GT Tubular Subframe Connectors

    Ford's new Mustang platform is a vast improvement over the Fox body with chassis rigidity upgraded over 30%. While this is good news, it is still a uni-body and we are still left with a front and rear subframe that is not connected. BMR subframe connectors take over where the factory left off. Both tubular and boxed designs complete the frame by tying the rear control arm mounts and subframe assembly to the front subframe. The HD boxed subframes go a few steps further by triangulating key structural points together to make a very rigid frame. Available standard in Silver Vein. Additional colors also available by special order.

  • Tubular subframe connectors are made from 1.75" diameter DOM tubing and 3/16" laser cut mounting plates
  • Can be welded without the need to remove interior carpet.
  • Reinforces the rear control arm mount.
  • Retains OE ground clearance.
  • Learn More
  • Stifflers 05-2014 Mustang FIT System
    $294.00

    Step Up to Stifflers FIT System and Stay in Shape...

    Twisting, bending, twisting, bending......unlike a human, this is NOT the way a car stays in shape! Even everyday driving puts your car through a workout of twists and bends. Installing Stifflers FIT System integrates the front and rear subframe and ties them into the rocker panel, forming a triangulated web of strength and stiffness. The end result is your car keeps its' shape, improving your handling, launches, ride quality and more.

    Will not work with side exit exhaust systems.

    - Allows suspension to work as designed, giving overall improved ride quality, handling and increased range of suspension tuning.
    - Integrates with lower torque box adding extra strength to control arm mounts
    - Transfers more power to the ground, not wasting it twisting and bending the chassis
    - Launches straighter
    - Stiffer chassis reduces or eliminates interior rattles and extends life of vehicle.
    - Weld locations free of powder coat, NO removal of powder coat required before installation for significant time savings.
    - Can be used with factory convertible braces with slight modification. (see Install instructions below)
    - Non-intrusive, no floors to cut, interior to remove or lines to relocate
    - Tube ends are sealed to keep out moisture.
    - Ground clearance remains unchanged
    - Increases side impact safety
    Learn More
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