Unlike anything else on the market these fuel rails are proper "machined from the solid" billet rails, not some cheap machined extrusion pretending to be billet. With accommodation for massive "-8" fittings, these fuel rails will easily cope with large capacity fuel systems using new generation large capacity fuel injectors. The twin top and single end entry/exits are designed to be configured as required. They are available to suit 11mm or 13mm diameter injectors, come supplied with two -8 plugs and mounting hardware to bolt up to either stock, or Process West Billet TGV's.