Using this GrimmSpeed exhaust gasket kit is straightforward. First, make sure your vehicle is turned off and cooled down. Remove the old gaskets carefully. Then, install the new gaskets from the kit in their respective places as marked. For example, put the engine to exhaust manifold gaskets where the old ones were. When tightening the bolts, do it evenly to ensure a good seal. As for maintenance, there's not much you need to do regularly. Just check the gaskets occasionally for any signs of leaks or damage. If you notice any issues, replace the gasket right away. Also, keep in mind that this kit doesn't come with crosspipe gaskets, so don't expect to find them in the box.