Turbosmart's newest High-performance EFI fuel pressure regulator is smaller, lighter and better! Featuring two -8AN inlet ports, one -8AN return port, and one 1/8 NPT gauge port, 30-90 PSI base pressure adjustment, 1:1 ratio, premium diaphragm and stainless steel valve + seat allow for ANY fuel type including E85 and is suitable for engines with up to 2000hp fuel systems. FPR's feature a non-directional bias to regulation, so no matter where the fuel comes in they will regulate the same. Factory tested.