Includes T-Adapter for Connecting Smoke Machines to Help Locate Air Leaks in the Components. Plugs the output side of the turbo and the intake inlet. Air and smoke are applied through one adapter to show the presence of leaks within the system. Features a pressure gauge, shut off valve and pressure regulator and includes six pairs of stepped adapters to fit most turbo systems on cars and light trucks. Can also be used on some cooling system hoses.