The 8' Thor's Lightning Air System Extension allows for the Thor's Lightning Midsize and Full-size Air Systems to be used with air sources that are hard-mounted in vehicles: under the hood, under the seat, roll-bar, or cargo area mounted. NOTE: Viair compatible extensions will have quick disconnect fittings on both ends. ARB/Power Tank extensions will have an I/M fitting on one end and a quick disconnect fitting on the other end. Lightning Bolt/Smittybuilt/Napa MaxiTrac air compressors will require a "Nitto" fitting adapter to work with the 8' Thor's Lightning Air System Extension.