Hot Street/Race EFI Applications Post Filter 10 Micron Holley's new VR Series Billet Fuel Filters are part of the complete VR Series Fuel Systems product line. VR Series Billet fuel filters are precision CNC machined from 6061-T6 billet aluminum for strength and durability. They feature a black bright dip anodized body and clear bright dip anodized ends for superior corrosion resistance and good looks. The Holley 162-575 fuel filter features - 12 AN inlet and outlet ports. Replacement elements are also available.