The BiRDS | Billet Rear Diffuser Supports
The BiRDS | Billet Rear Diffuser Supports

The BiRDS | Billet Rear Diffuser Supports

Regular price$225.00


What are they? The BiRDS are elegantly designed 6061 billet machined diffuser support brackets. The BiRDS will bolt directly into your rear crash bar and your rear diffuser, in OEM locations, with no modification required. New stainless steel hardware is supplied with the pair of BiRDS.

What do they do? The BiRDS replace the sub-par OEM factory plastic rear diffuser supports that are possibly already broken on your car. As most of you are aware, the S550, and even more specifically, the GT350 suffers from saggy rear bumper issues. There is a TSB in place but over time the dealer fix will also begin to fail and your rear bumper fascia will sag. The BiRDS will easily support all of the weight/downforce that your rear diffuser produces at speed. Those plastic clips and brackets obviously don’t...

Which cars can use the BiRDS? (2015-current) All S550 Mustangs, GT350 and GT500.


  • The BiRDS are finished in high quality satin black anodize with a laser annealed ARCHETYPE RACING script. You'll probably never really see them again, after they are installed, but you'll always have that piece of mind, knowing you have high quality brackets supporting your rear fascia.
  • The aluminum tabs are multi-positional to account for the orientation of your electrical harness at the rear of the car.
  • Crafted for ARCHETYPE RACING by Reut Design Co.
  • Direct aftermarket replacement for OEM parts.
  • The upper mount is slotted to allow customer adjustment for that oh so perfect fit.
  • Installation instructions are included.
  • TMO/Veteran/LEO/First Responder 10% discount is available. Please email for a custom invoice
  • Free shipping to the lower 48 states
  • Please email for an international shipping quote

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