Skunk2 Racing's Composite Fuel Rails for the 2006-2011 Civic Si are made using a proprietary carbon-impregnated, aerospace thermo-polymer composite material that is 33-percent lighter, 60-percent stronger, and operates up to 100-degrees F cooler than aluminum. Cooler fuel means more horsepower and torque!!
 
Features:
Large .625" Internal Bore 
Radius-Cut Fuel Injector Outlets for Improved Flow 
Compatible with All Fuel Types 
33% Lighter & 60% Stronger than Aluminum 
Supports up to 1,200 HP 
-8 AN ORB Inlet and Outlet Ports 
1/8" NPT Accessory Port