Radium Top Feed Fuel Rail Conversion Kit, Nissan RB25DET

This fuel rail is for the Nissan RB25DET (non NEO) engine ONLY. This is commonly found in the R33 Skyline among others.

Manufactured with a large 0.69" internal bore, the fuel rail can support all any engine power requirements. The Radium fuel rail converts the OEM side feed fuel injector setup to top feed injectors, allowing the use of a wide variety of aftermarket fuel injectors available on the market. This kit is compatible with E85.

The fuel rail has four 8AN ORB ports that can be used for fuel inlet, outlet or for plumbing option accessories. All unused ports must be plugged. The rail is extruded and CNC machined from solid 6063 aluminum and black anodized for a high quality surface finish. The green injector seats press into the intake manifold and provide a sealed base for the top feed fuel inejctors to sit on. These injector seats require fuel injectors with a 14mm lower O-ring (common size).

If you have a deadline to meet, please confirm that we have stock ready for dispatch to avoid disappointment!


Product Info

Kit Includes:
Black Anodized Aluminum Fuel Rail
Phenolic Mounting Bolt Spacers, Short (x3)
Phenolic Mounting Bolt Spacers, Tall (x3)
Phenolic Mounting Bolt Washers (x3)
Radium 20-0161-06, 25mm Injector Seats
Stainless Steel Mounting Bolts, Short (x3)
Stainless Steel Mounting Bolts, Tall (x3)
To reuse the factory fuel pressure regulator, select part number 20-0303

Shipping & Returns

Free Shipping does not apply to some heavy items, for example: Wisefab & BC Racing are included for free shipping, NPC and some PWR are not included.

Shipping times may vary depending on your location, however the majority of packages are received within 3-5 business days of dispatch!

We dispatch 5 days a week, and aim to process all orders within 24hrs*

On weekends and public holidays, orders will be processed next business day.

*order processing may be delayed during sale events or holiday periods.

Payment Methods

We accept all major payment methods including Visa, Mastercard, AMEX & Paypal.

looking for something specific?

Contact Us Today!

We can help with any project you are working on!

Need a specific part?

Just let us know what you are looking for and we will get back to you within 2-3 business days!