Using this ISR water neck outlet is straightforward. First, remove your current water neck. Then, install this new one and connect the S14 water lines. If you're using it on an S13, you'll need to add an extra bung for another water line source and water temp sensor port. As for maintenance, regularly check the connections to make sure there are no leaks. And keep an eye on the coolant level. Remember, ISR orders usually take a day to process. If you're in a hurry, reach out to us directly.