Steeda IRS Subframe Braces (15-18 Fastback)

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Steeda IRS Subframe Braces (15-18 Fastback)


  • mproves Handling Performance
  • Eliminates Rear Sub Frame Movement
  • Reduces Wheel Hop
  • Tubular Chromoly Steel Construction
  • Silver Flake Powder Coat Finish
  • Direct Bolt-On Upgrade
  • Made in the USA
  • Fits All 2015-2018 Fastback Mustang Models

Eliminate IRS Subframe Movement.

The Independent Rear Suspension (IRS) of the S550 Mustang is notorious for moving under acceleration, hard braking and even spirited driving, but by installing a set of Steeda IRS Subframe Braces you can eliminate rear sub frame movement and reduce dreaded wheel hop to improve overall handling performance.

Tubular Construction.

Steeda designs and manufactures their IRS Subframe Braces in the USA from tubular 4130 chromoly steel in a 3-point triangular design for superior strength and features a durable powdercoated silver metal flake finish for corrosion resistance.

Easy Bolt-on Installation.

Steeda's IRS Subframe Braces are designed to be a simple bolt-on upgrade that  utilizes the existing stock mounting points with no welding, cutting or extra modifications required for a straight forward bolt-on install.


These Steeda IRS Subframe Braces are specifically designed for use on 2015-2018 Fastback Mustangs, including the V6, EcoBoost and GT models. Does not fit convertible models.


Fitment: 2015, 2016, 2017, 2018