Girodisc Ford S197 Mustang Rear Replacement Rings Diagnostic Maximized turbo & engine efficiency

Maximized turbo & engine efficiency

Any fuel cell using the standard 6x10 bolt pattern with 1/4"-28 threads

The velocity also functions as a solid mount for the air filter which means no intake pipes rattling on heat shields

The 2-piece design means a reusable hat which can be attached to new rings (part number D1-268) when they need to be replaced

Exducer: 49

Girodisc Ford S197 Mustang Rear Replacement Rings Diagnostic Maximized turbo & engine efficiencyOur replacement rings are sold in pairs and include replacement hardware. The only parts you will reuse are your existing GiroDisc hats. Please note that unless specifically noted, GiroDisc replacement rings are only designed to work with GiroDisc hats. They are not designed to be used with other brands, including hats from cars equipped with 2 piece rotors from the factory.