Girodisc Porsche 992 GT3, GT4 RS Rear Replacement Rings Fuel Cell Mount Excellent horsepower gains - with

Excellent horsepower gains - with matching Stage 2 Tune

UNIQUELY ENGINEERED

Does not include AFR (Air/Fuel Ratio Regulator) - ECU recalibration or a fuel correction device is required

Nissan Skyline R33 R34 GT-R

Girodisc Porsche 992 GT3, GT4 RS Rear Replacement Rings Fuel Cell Mount Excellent horsepower gains - withOur 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.