Pressure Regulators

Fuelab Diaphragm & O-Ring Kit for 515xx/525xx Series Regulators - Standard Seat

They work in tandem with your AEM fuel pressure regulator to smooth out the pressure pulsations caused by the injectors opening and closing as well as the fuel pump operation under load.

They work in tandem with your AEM fuel pressure regulator to smooth out the pressure pulsations caused by the injectors opening and closing as well as the fuel pump operation under load.

Fuelab 535 EFI Adjustable Mini FPR 25-90 PSI (2) -6AN In (1) -6AN Return (3) -6AN ORB w/Gauge Kit

Fuelab Diesel Velocity Series Adjustable FPR Large Seat 4-12 PSI (1) -10AN In (1) -10AN Out