This kit has been designed to charge the turbo system with a low pressure of regulated workshop air to show the presence of leaks within the system. Professional and economic troubleshooting. Safety valve prevents applying to much pressure preventing damage. Features a pressure gauge, shut off valve and pressure release valve. This kit can also be used on cooling system hoses, turbochargers, G-Chargers. Universal use to fit most charging systems. This kit has been designed to fit modern engines.