Girodisc Subaru WRX STI ('04-17) Front Replacement Rings 4G63 Additional hoses/fittings may be required

Additional hoses/fittings may be required and sourced separately

BMW F87 M2 Competition (2018–2021)

Radium Port Injection Fuel Rail Kit - Honda Civic Type-R FK8 (2017-2021) / FL5 (2022+)

and real-world use to maximize potential

the viscosity of the damper fluid can change

Girodisc Subaru WRX STI ('04-17) Front Replacement Rings 4G63 Additional hoses/fittings may be requiredOur 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.