AEROMOTIVE – X1 Fuel Regulator Black 3-20psi w/.313 Seat AFS13304 Fuel Pressure Regulator – X1 Series – 3 to 20 psi – In-Line – 8 AN Female O-Ring Inlet – 8 AN Female O-Ring Outlet – 8 AN Female O-Ring Return – 1/8 in NPT Port – Black Anodized – E85 / Gas / Methanol – Each