DEATSCHWERKS – DWR550C Fuel Regulator w/Gauge 3/8 Barb Fitting DWK6-0550-FRB-38 Fuel Pressure Regulator – 3 to 10 PSI – In-Line – 6 AN Female O-Ring Inlet / Outlet / Return – 1/8 in NPT Port – Fittings / Gauge Included – Aluminum – Black Anodized – Gas / E85 – Kit