The Fuelab 525 in-line TBI fuel pressure regulator with large-seat valve is a universal adjustable regulator tuned for throttle-body injection at 10–25 psi. It uses one -6AN inlet and one -6AN return for simplified plumbing. The large-seat configuration helps maintain stable pressure under varying flow, making it a practical choice for retrofitted or high-demand TBI installations that need adjustable control.
Fuelab 525 TBI Adjustable FPR In-Line Large Seat 10-25 PSI (1) -6AN In (1) -6AN Return - Green