Description
Radium Engineering developed the Fuel Rail Plumbing Kit for 1999–2005 Mazda Miata/MX-5 around the needs of modified street and competition cars, where component compatibility and clean system layout matter as much as outright capacity.
Why This Upgrade Matters
A purpose-built plumbing kit removes much of the guesswork from converting a fuel rail installation into a complete working system. Correct hose routing, fittings and interfaces are especially valuable in tightly packaged engine bays where improvised plumbing can create serviceability, heat-management or clearance problems.
Product-Specific Details
Permits a bolt-on plug and play replacement for the OEM system when using the Radium Engineering fuel rail for the MX-5/Miata. OEM fuel pressure regulator is retained. Feed and return hoses are replaced.
Fitment & Application
Application: 1999–2005 Mazda Miata/MX-5
Fitment style: Application-Specific
Technical Notes
Treat the plumbing kit as part of the complete fuel-system layout. Confirm whether the build remains returnless or is being converted to a return-style system, and account for the regulator, filter, sensor, damper and pump configuration before installation.
Radium Part Number
RAD20-0423
Enthusiast Notes
This is the kind of part that makes a finished engine bay look intentional: fewer improvised adapters, cleaner routing and a system that can be inspected quickly between sessions.
Before Ordering
Confirm the matching Radium rail/hanger part number and the intended fuel-system architecture. Pumps, injectors, filters and regulators may be separate depending on the kit.