[Application] fuel regulator fit for most vehicle's EFI system.
[Medium] bypass fuel pressure regulator compatible with gasoline,E85 and alcohol/ethanol, not compatible with diesel fuel. (Nylon braided fuel line is not compatible with E85.)
[Adjustable Range] The pre-installed spring supports a pressure range of 20-75psi, while the replacement spring supports a pressure range of 75-120psi. Adjust the set screw on top to get the desired pressure, and change to the replacement spring if a higher pressure is needed.