Dewhel Universal JDM Aluminum Billet Fuel Pressure Regulator Gauge PSI Oil Line AN6 Fittings In Package:7 pcs Hose and fitting,6AN size; 3pcs stainless steel Braided fuel hose(170mm ; 380mm 660mm),fuel pressure regulator,gauge Quick Fuel Billet Bypass Regulator Designed for use with an electric fuel pump where fuel pressure is steadily delivered. By-Pass feature is unrestricted and anodized top has a fitting for boost referenced applications. Comes with laser cut stainless mounting bracket and hardware. #8 AN O-Ring fittings required