Girodisc Ferrari 328 GTB/GTS, Mondial Front Replacement Rings Side Feed and keep you in the

and keep you in the highest power output possible from your ECU tune and performance hardware upgrades

The bellmouth shape is incredibly efficient at channeling the mass amounts of airflow coming through the 5" air filter's surface area and smoothly transferring it down to the intake piping with very low amounts of drag or power-robbing turbulence

3lbs for the stock units

The thickness and composition of this Nitride layer are independently verified in a materials testing lab for each production batch

Girodisc Ferrari 328 GTB/GTS, Mondial Front Replacement Rings Side Feed and keep you in theOur 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.