Girodisc Porsche Carrera, 981, 718 Front Replacement Rings MAZDA_FD3S Axle-back: replaces rear mufflers only

Axle-back: replaces rear mufflers only

transfer gearboxes and hypoid differentials — with or without LSD

Real-world power numbers are achieved using our in-house dyno cells to verify the efficiency of the downpipe design

For current 20-049X-XX FCST models

3" (210mm) diameter with over 130

Girodisc Porsche Carrera, 981, 718 Front Replacement Rings MAZDA_FD3S Axle-back: replaces rear mufflers onlyOur 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.