The Mustang Forum for Track & Racing Enthusiasts

Taking your Mustang to an open track/HPDE event for the first time? Do you race competitively? This forum is for you! Log in to remove most ads.

  • Welcome to the Ford Mustang forum built for owners of the Mustang GT350, BOSS 302, GT500, and all other S550, S197, SN95, Fox Body and older Mustangs set up for open track days, road racing, and/or autocross. Join our forum, interact with others, share your build, and help us strengthen this community!

S550 Rear Girodisc Rotors Available to Order!

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Fit All 2015+ S550 Mustang GT, Mustang GT Performance Pack, Mach 1, EcoBoost Performance Pack Vehicles. Shipped weight is 30 pounds for a set of 2. OEM Rear rotors are wheel side cooled, these are hub side cooled, directional vane rotors and they will save about 3-4 pounds per side. Girodisc was finishing up the initial production run so we expect them to ship in the next week or so.
13-14 GT500 Front Curved.JPG S550 Rear Girodisc Rotor Assemblies

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