Radium Fuel Rail Plumbing Kit — Honda S2000 AP1 (1999-2004)

This plumbing kit includes all necessary fittings and hose components to install the Radium 20-0591-02 fuel rail on a 1999-2005 Honda S2000 using the OEM fuel configuration. Designed to integrate directly with the factory fuel lines for a clean, straightforward installation with no custom fabrication required.

Note: The Radium 20-0591-02 fuel rail is not included and must be purchased separately.

Suits:

• Honda S2000 AP1 (1999-2004) — F20C engine

Compatible Fuel Rail:

• Radium 20-0591-02 — Fuel Rail, Honda S2000 AP1 (sold separately)

Kit Includes:

• All fittings and hose components required for OEM fuel configuration installation
• AN and OEM-style adapter fittings for factory fuel line integration
• Stainless steel hardware

Available Part Numbers:

• 20-0091-PK — Fuel Rail Plumbing Kit, Honda S2000 AP1 (1999-2004)
• 20-0591-02 — Fuel Rail, Honda S2000 AP1 (sold separately)

Why Radium Engineering?

• ✅ Manufactured in the USA to motorsport-grade tolerances
• ✅ CNC-machined billet aluminium fittings for precision fit and long-term durability
• ✅ Trusted by tuners and race teams running high-power S2000 F20C builds worldwide
• ✅ Complete plumbing kit — integrates with OEM fuel lines, no custom fabrication required
• ✅ Compatible with E85, ethanol, methanol, pump petrol, and flex fuel sensor integration