FFE 13B-T FC3S Primary Fuel Rail Fits: 86-91 Mazda RX7 (S4 and S5 13B-T) w/ Aftermarket Top Feed Injectors (14mm o-ring top/bottom, 48mm length)
48mm Primary Fitment Only
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
Includes Lower O-Ring Inserts, the primary diffusers must be removed.
Black Color Only
FFE 13B-T FC3S Secondary Fuel Rail
Fits: 86-91 Mazda RX7 (S4 and S5 13B-T) w/ Aftermarket Top Feed Injectors (14mm o-ring top/bottom, 48 or 60mm length)
Includes Lower O-Ring Inserts, the diffusers must be removed.
FFE 13B-T FC3S Primary and Secondary Fuel Rail, Fitment: 86-91 Mazda RX7 (S4 and S5 13B-T) w/ Aftermarket Top Feed Injectors (14mm top/bottom o-ring)
13B-T’s require different lengths/combinations depending on S4 or S5.
