The Radium Engineering high flow secondary fuel rail is for the 13B-RE rotary engine originally found in the 1990-1995 Mazda/Eunos Cosmo. 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. Like the stock fuel rail, the rail features 11mm injector bores permitting the use of OEM fuel injectors.
INSTALLATION INSTRUCTIONS AVAILABLE AT RADIUMAUTO.COM

Fits
1993 Mazda RX-7 Base
1993 Mazda RX-7 R1
1993 Mazda RX-7 Touring
1994 Mazda RX-7 Base
1994 Mazda RX-7 R2
1994 Mazda RX-7 Touring
1995 Mazda RX-7 Base
1995 Mazda RX-7 R2
1995 Mazda RX-7 Touring