Adjustable fuel pressure regulator. Suits all Speed 6, all AJP V8s and all Rover V8 powered cars. Pressure can be set (by virtue of a screw and lock nut) from 0 to 5.0 bar, ideal for modified cars but also great to set road cars fuel pressure correctly under load. Manufactured in stainless steel to enhance the under bonnet appearance and prevent corrosion both internally and externally. Allows absolute precise adjustment to fuel pressure to ensure correct tuning and fuel supply requirements.