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The S1 VQ35HR fuel system builds on the S0 system by introducing our billet aluminum fuel rails and additional engine bay plumbing. Starting with a 6AN QD adapter for the fuel feed pipe, a 6AN hose feeds fuel into the rear of the RH fuel rail. The rails are joined in the front with a short 6AN crossover hose and fuel leaves the rear of the LH rail leading to the adjustable regulator. From this point back, it matches the S0 system with a 6AN return line leading back to the fuel tank and a return correction kit for the fuel pump housing.

This is our most popular current HR fuel system. The series style plumbing (one rail leads to the other) is a clean approach and, with appropriate fuel injector and pump upgrades, it is suitable for use at power output levels up to, and exceeding, the factory HR short block.

As with all our fuel systems, the hoses are constructed from SS Braided PTFE. Most the hoses have a black PVC coating to protect your chassis or neighboring components from the abrasion of stainless braiding.

Included Components and Options

-FPD Fuel Rail Kit, VQ35HR

 -Z33 S1 HR Plumbing Kit:

  • 6AN QD Pipe Adapter.
  • 6AN PTFE Hose, Black Coated SS Braid, Pipe to RH Fuel Rail.
  • 6AN PTFE Hose, Exposed SS Braid, Rail Crossover, Front.
  • 6AN PTFE Hose, Black Coated SS Braid, LH Fuel Rail to Regulator.
  • 6AN PTFE Hose, Black Coated SS Braid, Regulator to Fuel Tank.

-Fuel Pressure Regulator Kit:

  • Adjustable with 1:1 Vacuum Port.
  • Aluminum 6AN Port Fittings and Plug.
  • SS Firewall Mounting Hardware included.

-CJM Return Correction Kit


  • Mini Fuel Pressure Gauge: When not installing an in-cabin fuel pressure gauge, you will need this to set and monitor fuel pressure.
  • Pulsation Dampers: Choose to purchase NEW OE FPD's or simply reuse your existing FPD's.

Technical Notes:

  • Fits with OEM injectors or most injectors compatible with stock rails.
  • Compatible with most popular injectors using a 14mm o-ring and 48mm body length.

NOTE: New OEM Nissan Fuel Pulsation Dampers (FPD) for use with CJM fuel rails can be found HERE.

Available Options:


Year / Model:


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