Click here to download installation instructions (PDF)
PORTS AND FITTINGS
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.
These fuel rails are compatible with the following vehicles that use the General Motors LS9/LSA V8 engines:
2009-2013 Chevrolet Corvette ZR1
2012-2015 Chevrolet Camaro ZL1
2009-2015 Cadillac CTS-V
2015-2017 HSV Senature Signature
2015-2017 HSV Clubsport R8
2015-2017 HSV Maloo R8
2013-2017 HSV GTS
2014+ Equus Bass 770
2017 HSV GTSR and GTSR Maloo
2014 HSV GTS Maloo
2017 HSV GTSR W1
The fuel rails are CNC machined from 6061 aluminum, black anodized, and laser etched for a high quality surface finish. Each fuel rail has six 8AN ORB ports, twelve ports in all. 
NOTE: It is advised that the fuel rails be mocked up on the engine before adapter fittings and fuel delivery accessories are purchased. This is necessary to check clearance of surrounding engine components which may interfere with accessing some of the fuel rail ports.
The fuel rails feature polished stainless steel brackets that attach to factory fuel rail mounting points. No vehicle modifications are required.
Like the OEM fuel rails, the injector bores are 14mm ID and are compatible with factory fuel injectors. Additionally, these rails have provisions for the factory injector clips, as shown below. 
Everything is compatible with all fuel types including popular alcohol mixtures such as E85.
20-0362 Fuel Rails, GM LS9/LSA
This includes 2 black anodized fuel rails, stainless steel mounts, and stainless steel hardware. Adapter fittings are NOT included.
20-0545 Fuel Rail Plumbing Kit, GM LS9/LSA
This kit includes all the necessary plumbing hardware to permit a plug and play affair with the 20-0362 fuel rails. An SAE quick connect adapts the OEM feed line into two 6AN PushLok fuel lines which supply each fuel rail. Furthermore, 8AN ORB plugs are included for all unused ports. Nothing else is required.