Black anodized. Boost Compensating Universal EFI Fuel Pressure Regulator 512-504-5. -8an & -6an o-ring style fittings included to adapt to steel braided fuel lines.
The Holley 512-504-5 Boost Compensating Universal EFI Fuel Pressure Regulator would be most suitable for automotive engine performance upgrades that require precise fuel delivery control and boost compensation for optimal engine performance.
