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The Fuelab 515 adjustable fuel pressure regulator in red is a universal EFI regulator adjustable from 25–90 psi, featuring two -10AN inlets and one -6AN return. It lets tuners dial fuel pressure to match injectors and fuel delivery requirements while supporting dual-feed setups via the two -10AN ports. The regulator’s broad adjustment range suits many aftermarket EFI configurations.
Fuelab 515 EFI Adjustable FPR 25-90 PSI (2) -10AN In (1) -6AN Return - Red
