A dual purpose, universal regulator for EFI or Carbureted and street or strip applications. Base pressure adjustable from 3 to 20 PSI with standard spring, (installed) or from 20 to 60 PSI with high pressure spring (included). Offers the full flow and rock steady fuel pressure that only a dynamic, Aeromotive bypass regulator provides. * Capable of regulating any fuel pump between 100 and 250 GPH. * Fuel pressure rises on a 1:1 ratio when referencing boost. * All ports are 3/8” NPT, with one inlet and three outlets on the main body and one return port on the bottom. * Bypass design provides the ultimate, dynamic fuel pressure control. Note: (Requires a return line to be installed from the bottom of the regulator to the top of the tank.) PartNumber : aer13130 Description : EFI Bypass Regulator & Fitting Kit; Includes EFI Bypass Regulator w/ (3) 15606 Fittings & (1) 15633 Pressure Gauge Inlet Port Diameter : 3/8 Outlet Port Diameter : 3/8 Port Quantity : 3 Pressure Range : 30-70 Title : Regulator Kit - (1)13129 EFI Bypass Regulator, (3)15606 Fittings, (1)15633 Guage California Proposition 65 : WARNING: This product can expose you to chemicals including chromium, which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit www.p65warnings.ca.gov. Fuel Delivery::Fuel Pressure Regulators