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The Fuelab FLB-515 EFI adjustable fuel pressure regulator delivers 90–125 psi control for electronic fuel-injection systems, letting tuners set and maintain stable rail pressure for high-flow pumps. It features two -6AN inlet ports and a single -6AN return and is sold as a universal, user-adjustable regulator for custom fuel rails and aftermarket EFI builds.
Fuelab 515 EFI Adjustable FPR 90-125 PSI (2) -6AN In (1) -6AN Return - Purple
