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Click here to download installation instructions (PDF)


The fuel rail ports are tapped for 8AN ORB and 1/8 NPT.

8AN ORB Adapter Fittings can be found HERE.
8AN ORB Direct Mount Regulators can be found HERE.
8AN ORB Fuel Pulse Dampers can be found HERE.
1/8 NPT Adapter Fittings can be found HERE.
Fuel Pressure Gauge Adapters can be found HERE.

Appropriate fittings must be selected based on the specific application. Ample space around the fuel rail port(s) is necessary for larger accessories such as fuel pressure regulators, fuel pressure gauges, and fuel pulse dampers. To verify clearance, the dimensional drawings on the product pages can be used as a reference guide.

Manufactured with a large internal bore, the fuel rail can support all necessary engine power requirements. They are CNC machined from 6061 aluminum, anodized, and laser etched for a high quality surface finish. Like the OEM fuel rails, the injector bores are 11mm ID so factory injectors, or any equivalent aftermarket injector, can be used. 

There is a provision to reuse the OEM fuel pressure regulator (FPR). If not using the OEM FPR, there will be an open 1/8NPT port that can be used for ancillary sensors, or it can be plugged. Shown in the 1/8 NPT port below is a 20-0029 Fuel Pressure Gauge with a 14-0339 1/8NPT Male To Female, 90Deg elbow. These can be found HERE.  

A Radium 20-0223 DMR, 8AN ORB regulator (shown in the end port) can be used in place of the OEM FPR. These can be found HERE. Furthermore, a Radium 20-0176 FPD-R, 8AN ORB fuel pulse damper can be installed (shown in top port). These can be found HERE.

The kit is compatible with all fuel types including popular alcohol mixtures such as E85. The fuel rail mounts using the OEM studs, nuts, and insulating spacers.  


20-0370-02 Fuel Rail, Honda B-Series
This kit only includes the fuel rail and the mounting hardware, making it ideal for custom applications. Extra fittings, hoses and other fuel plumbing items will be needed to complete the installation.

20-0370-00 Fuel Rail Kit, Honda B-Series 
This kit is a bolt-on plug and play replacement for the factory fuel rail. It is designed to be used with the OEM fuel pressure regulator and fuel pulse damper. The kit includes -6AN vapor shield hose to replace the factory feed hose from the filter to the rail. This is a good option for a quick plug-and-play installation.

An OEM fuel pulse damper adapter is also included (shown below)

20-0370-PK Fuel Rail Plumbing, Honda B-Series
The plumbing kit includes the items shown in the image below. 


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