Bright dip, black anodized finish with laser etched EFI logo for long lasting good looks 5/8” diameter fuel passage provides the flow capacity for high horsepower applications Fuel rails are machined to accept -8 (3/4-16) O-ring fittings Includes (4) -6 to 3/4-16 O-ring adapters, (6') braided hose, (4) 90º and (2) straight -6 hose ends