Using this intake manifold is quite straightforward. First, make sure your vehicle is a 1994 - 1998 Dodge Ram with a 5.9L 12V Cummins engine. Install the intake manifold using the included OEM bolts and gasket. You can connect your methanol/water injection or boost gauge to the two 1/8' NPT ports. Remember, since it's a special order product, it might take 1 - 2 weeks to arrive. Check with us if you need it faster. As for maintenance, keep an eye on the connections and the overall condition of the manifold. If you notice any leaks or damage, it's best to get it checked out. Clean it regularly to ensure optimal performance.