• Feature: Adjustable from 3-70psi.(You need to replace the spring inside of the top if you need other psi which is out of the range, we provide three ranges of 3-20psi, 20-45psi which is pre-install, 45-70psi).
• Function: Adjust fuel injection volume appropriately to keep the stable pressure in the fuel system, saving fuel consumption.
  3 Types Of Pressure Springs:  3-20psi, 20-45psi, 45-70psi (suitable springs can be replaced as you needed, and the pressure of the springs can be adjusted by adjusting the knob of the regulator).
• Tips: If your fuel pressure requirement is between 20 to 45 psi, the factory installed regulator spring is the proper spring.
• Tips: If your fuel pressure is required to be between 3-20 psi or 45-70 psi,  insure the pressure adjustment set screw is backed out all the way, remove the 4 cover screws and cover, remove the factory installed spring, replace it with a suitable spring, and reassemble the regulator. 
• What You Get: 1x fuel pressure regulator, 1x gauge, 2x -8AN fittings for feed and supply lines,1x -6AN return line fitting,1x AN8 end cap, 3x pressure springs(you can cap off one feed if you only need 1 feed).
• Material: CNC-machined with aluminum billets, sturdy, resistant to high pressure and high temperature, not prone to rusting, and prolonging service life.

Specification:

Fitment

Universal, can be used with E85 or alcohol.

Package Includes:

1x fuel pressure regulator, 
1x gauge, 
2x -8AN fittings for feed and supply lines,
1x -6AN return line fitting,
1x AN8 end cap, 
3x pressure springs

NOTE: