Description Secondary Fuel Rail for use on S4 & S5 Mazda RX-7 13B Turbo engines using the OEM lower intake manifold. Replaces secondary fuel rail only. Designed to 14mm “American” Style Injectors like the popular Bosch 1680cc Injectors. Machined aluminum extrusion with machined mount brackets Bolt-on application All parts and hardware included Rail is tapped at both ends to accept 3/8 NPT fittings. Optional Injector Spacers for sealing the injectors in engine sold separately. You may need need Tap In Lower Intake Manifold Spacers (LIMS) depending on your specific Injectors. These are available separately. Primary Rails Sold Separately. **Banjo bolt adapter lets you attach the stock primary fuel rail.** **Does not include the aluminum spacers. We sell those separately.**
