WHY?
Use the COBB 3/8" to 10mm Fuel Line Adapter when adding a pressure or temperature sensor to a 3/8" fuel line. It is also compatible with and can be installed directly onto the COBB Ethanol Content Sensor.
NOT COMPATIBLE WITH SUBARU FACTORY FUEL LINES
If you need an adapter to an OEM 5/16" fuel line, CLICK HERE.
