Using this Tomioka TD06 - 20G Turbocharger is straightforward. First, make sure to install all the components in the kit properly, like connecting the oil and water pipes, and fitting the gaskets. When starting your vehicle, let it idle for a short time to allow the turbo to warm up. For racing use, since this turbo can handle up to 420 HP, remember that upgrading your engine internals is crucial to prevent damage. As for maintenance, regularly check the oil level and the condition of the pipes and gaskets. If you notice any leaks or strange noises, have it inspected right away. Also, follow the manufacturer's recommended service intervals to keep your turbocharger running smoothly.