You are looking at the COBB Tuning Fuel Rails which make for great components to a proper fuel system. These rails have been constructed from 6061 Billet aluminum materials and feature black anodizing with a laser etched COBB logo. Each rail will have a -8 AN to a -6AN adapter that is pre-installed to makes these rails ready for the installation.
Hardware and adapters will be supplied with these fuel rails which means you can run stock style or Injector Dynamics Fuel Injectors.