Girodisc Corvette C5, C6 Z51 Front Replacement Rings 1990 Fuel compatibility: All fuel types

Fuel compatibility: All fuel types including E85 and alcohol blends

Fully upgrade your intake system and breathe free for unrestricted power

Front pad shape EP558 (133

0TFSI Supercharged (non-CREC)

PCV side only — does not address CCV blow-by

Girodisc Corvette C5, C6 Z51 Front Replacement Rings 1990 Fuel compatibility: All fuel typesOur 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.