13B-T FC3S Primary Fuel Rail The primary diffusers must be removed. Includes Lower O-Ring Inserts Black Color Only 48mm Primary Fitment Only Fits: 86-91 Mazda RX7 (S4 and S5 13B-T) 1/2″ Bore – Suited for high horsepower needs O-ringed end fittings – No more Teflon tape/worn threads! Centering Spacers – Ensuring injectors are centered for no air/fuel leaks Stainless Hardware – High strength/corrosion resistant Injector Dynamics Fitment RX-7 87-92 (14mm) 1050.14.48.14 1300.14.48.14 1750.14.48.14 2600.14.48.14
