The Radium Engineering high flow primary fuel rail is for the 13B-RE and 13B-REW rotary engine found in the 1990-1995 Mazda/Eunos Cosmo and 1992-2002 Mazda RX7 FD3S. The aluminum fuel rail is anodized black for compatibility with all popular fuel types including E85. Manufactured with a large internal bore, the fuel rail can support all necessary engine power requirements.
Requires 34mm total length ID injectors with 14mm upper and lower o rings( no top hat adapters)
Requires removal of OEM injector sleeves, and new radium lower sleeves included with fuel rail.