The Fuelab FLB-515 EFI large-seat adjustable regulator covers 25–90 psi for electronic fuel-injection systems that prefer a larger valve seating area. This universal regulator has two -6AN inlet ports and one -6AN return, offering broader pressure control for boosted or high-flow EFI applications where a larger seat improves flow stability and service life under heavier duty cycles.
Fuelab 515 EFI Adjustable FPR Large Seat 25-90 PSI (2) -6AN In (1) -6AN Return - Gold