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Our Price: $279.95
Fuel Rail:
Plumbing Kit:
Optional Parts:



Click here to download installation instructions (PDF)


The fuel rail ports are tapped for 8AN ORB.

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.
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.


This kit is compatible with the 2007-2014 (S197) Shelby GT500 with OEM returnless or aftermarket return fuel systems. 


Manufactured with a large internal bore, the fuel rails can support all necessary engine power requirements. They are CNC machined from solid 6061 aluminum, black anodized, and laser etched for a high quality surface finish. Like the OEM fuel rails, the injector bores are 14mm ID so factory injectors are permitted.

This kit offers a total of eight 3/4-16 (8AN ORB) threaded ports to allow plumbing of anciliary fuel system devices. In order to clear the supercharger's intake pipe, the LH fuel rail (shown above) features three ports. The lower center port for both rails are most commonly used for Radium Engineering fuel pulse dampers. The RH fuel rail (shown below) features all the ports from the LH side fuel rail with the addition of two top ports (5 total). The top front port is for the provided adapter that is used to mount the OEM fuel pressure sensor. The top rear port is commonly used for aftermarket fuel pressure monitoring. A variety of compatible 8AN ORB adapter fittings can be found HERE

This kit is compatible with all fuel types including popular alcohol mixtures such as E85.

This fuel rail is compatible with factory or OEM equivalent fuel injectors. If upgrading fuel injectors, consult your aftermarket injector supplier for details. Radium Engineering cannot specify any further injector dimensions other than stating ‘OEM equivalent’.


20-0320 Ford Shelby GT500 Fuel Rail Kit 
-Black Anodized Laser Etched Aluminum Fuel Rails, RH
-Black Anodized Laser Etched Aluminum Fuel Rail, LH
-Ford Fuel Pressure Sensor 8AN ORB Adapter Fitting
-Stainless Steel Mounting Bolts (x4)

20-0334-11 Fuel Rail Plumbing Kit, S197 Mustang

The plumbing kit allows for easy integration with the the OEM fuel system. Unlike others on the market, the kit does not reuse the awkward 180 degree feed line with the fuel rails fed in series. Instead, this kit eliminates any unnecessary fuel hoses that route over the top of the engine preheating the fuel. The kit plumbs the fuel rails starting from the OEM hard pipe near the firewall and feeds the rails in parallel for even fuel distribution with the use of our high flowing Y-adapter fitting. All hoses are high quality PTFE and are compatible will all fuel types including E85. Billet aluminum O-ring plugs are included for all unused ports on teh fuel rail.

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