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PRODUCT DESCRIPTION
PORTS AND CONNECTIONS
The fuel rail ports are 8AN ORB and 1/8 NPT threads.
8AN ORB Adapters, 8AN ORB Direct Mount Regulators, 8AN ORB Fuel Pulse Dampers, 1/8 NPT Adapters, Fuel Pressure Gauge Adapters
Appropriate connections must be selected for the specific application. Sufficient clearance should be left around the fuel rail ports for larger fittings, such as fuel pressure regulators, fuel pressure gauges, and fuel pulse dampers.
This large bore fuel rail features a 0.69" (1.75") internal bore. It uses all 5 original equipment manufacturer (OEM) mounting brackets. The rail is machined, anodized, and laser etched for a high-quality surface finish.
It is compatible with all fuel types, including common alcohol blends like E85. It is also designed to work with OEM fuel injectors.
The factory fuel pressure regulator can be used or the port in that location can be used for a 1/8" NPT fuel pressure gauge, transducer, plug, etc.
FUEL INJECTOR COMPATIBILITY: This rail is compatible with factory or OEM equivalent fuel injectors. If you are upgrading injectors, consult your aftermarket injector vendor for details. Radium Engineering cannot specify further injector dimensions, only stating "OEM equivalent."
20-0591-02 Fuel Rail, S2000, 00-05. This basic configuration does not include connections. Replacement vacuum tubing is included for simplification and rigid line elimination. Instructions PDF










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Each product indicates compatible models in the product description. If you have any questions, you can contact us and we will help you choose your best option.
-If the product is in stock, the usual delivery time is 2 to 5 working days.
-If the product is out of stock, the delivery time is 7 to 15 working days.
All our products come with the manufacturer's official warranty and comply with current regulations.
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For some products, especially large items or those with special characteristics, shipping costs may require a manual review. If the amount shown does not match the actual shipping cost, we will contact you before processing the order to inform you of the final cost and request your confirmation before proceeding. We will never charge any additional fees without your authorization.