evil energy 6an male to 5/16" sae quick disconnect male push on efi fitting adapter aluminum evil energy evil energy is our brand, we're a direct and professional manufaturer in china, one of greatest manufacturer and exporter in tuning parts include intake system, exhaust system, engine system, cooling system, interior & exterior parts. <br> accept customized order with minimum quantity. <br> these fuel fittings are precisely manufactured for a quick and easy installation. <br>6an male to 5/16" factory fuel line <br>the fitting made of t6061 aluminum, high strength and good durability.