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) w/ Aftermarket Top Feed Injectors (14mm o-ring, 48mm length)
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