This adjustable pressure regulator is designed to work on all naturally aspirated EFI, turbo, and supercharged applications. It has a 2-port 1:1 boost compensating return style regulator that is adjustable from 15-65 PSI boost reference. It is designed to be used in conjunction with any electric EFI fuel pump and features a built-in gauge port, mounting bracket, 2 -8AN O-ring fittings, and a -6AN O-ring return fitting. It is made of billet aluminum with a black anodized finish