Air Cleaner Intake Inlet Duct for Toyota Corolla 2014 2015 2016 L4 1.8L GAS DOHC. New Right Power Hatch Lift Support For Infiniti Qx60 2015 2016 2017 L4 2.5L US. Function: the air hose is fixes between air intake box and throttle body on vehicle, which connects the air filter box and the intake manifold.