Steeda Rear Chassis X-Brace | 2005-2014 Ford Mustang (555-5093)

Steeda Autosports
Looking for the lowest price?

Give us a call to get the best prices and parts for your build. Or, just call us with a cool racing story...either way we're here.

Phone Call or Text 651-927-4510

Email -

Fits Your:
FREE Delivery Expected by , when ordered within hrs and mins
 Need Help Getting Started?
Call Or Text Our Experts at 651-927-4510


Earn  $6.80 In MAP Rewards!

2005-2014 Mustang Rear Chassis X-Brace by Steeda Autosports

Our latest rear chassis X-brace addresses the fact that not everyone wants to get rid of their rear seats for the added benefit of the rear chassis brace. Obtaining the rear seat delete parts from the Boss 302 can be an expensive task, and having a rear seat delete made can be a challenge as well.

After listening to these concerns from our customers, the result is our Steeda Rear Chassis X-brace that does not require a rear seat delete. This brace installs in the chassis area between the rear wheel wells behind the rear seats which effectively couples this part of the rear structure together to increase chassis rigidity.

Besides engineering the benefit of not having to get rid of the rear seats, this design is a significant improvement over Ford's original design for the Boss 302. Our X-brace mounts to the rear shock towers instead of attaching to the sheet metal behind the rear seats. This design is more effective and distributes the loads between the rear shocks, springs and the chassis, and not just the sheet metal of the vehicle. The result is much more effective chassis deflection reduction with improved suspension compliance over a sheet metal mount design. This brace can be used as a bolt on installation or welded for maximum effectiveness.


  • Allows the rear seats to be retained!
  • Much more effective than other designs
  • Bolt on or weld on installation


Does not fit convertibles or vehicles with Shaker/Mach 1000 stereo systems.


  • 2005 - 2014 Ford Mustang V6
  • 2005 - 2014 Ford Mustang GT
  • 2006 - 2007 Ford Mustang Shelby GT
  • 2007 - 2014 Ford Mustang Shelby GT500
  • 2012 - 2013 Ford Mustang Boss 302
  • 2008 - 2009 Ford Mustang Bullitt

What's In The Box?

  • 1 - Rear Chassis X-Brace
  • Necessary Hardware
  • Instructions/Manuals
  • Warranty Information


  • Tools Required: Basic Tools
  • Time of Install: About 1 Hour
  • Level of Difficulty: Easy




Steeda Autosports Warranty

Customer Reviews

No reviews yet