FC3S 13B-T Rail Set S5


  • 13B-T FC3S Primary and Secondary Fuel Rail
  • The diffusers must be removed.
  • Includes Lower O-Ring Inserts
  • Black Color Only
  • 48mm Primary Fitment Only
  • Fitment: 86-91 Mazda RX7 (S4 and S5 13B-T)
  • 1/2″ Bore – Suited for high horsepower needs, accept 6AN ORB fitting size
  • 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
  • 13B-T’s require different lengths/combinations depending on S4 or S5.