Kit is as advertised. For air horn enthusiasts, I would recommend omitting the included small bore hose and upgrading to a reinforced 3/8" ID hose that can handle 225psi. When installing under the hood, consider the heat, especially in the summer, as this will slightly reduce PSI capability. Use Wolo 804 electric solenoid valve and easily drill inlet and outlet holes. Convert each hole to a 3/8" barbed nipple. For the tank, ream the outlet slightly and add a barbed nipple here. Double clamp onโฆ