Radium Engineering’s plumbing kit for 1999–2005 Mazda MX-5/Miata supports installations using the Radium fuel rail, replacing feed and return hoses while retaining the OEM fuel pressure regulator. The kit permits a bolt-on, plug-and-play replacement for the OEM system when paired with the Radium rail, streamlining the upgrade path for MX-5 owners wishing to install the aftermarket rail.
Radium Engineering 99-05 Mazda Miata/MX-5 Fuel Rail Plumbing Kit