Using this Banks Monster - Ram Air Intake is easy. First, make sure your vehicle is turned off and cooled down. Then, remove the old air intake following the standard procedures for your 1998 - 2002 Dodge Ram 2500/3500 with 5.9L Cummins engine. Install the new intake in place of the old one, connecting the boost tube carefully. When it comes to maintenance, check the intake regularly for any signs of damage or blockage. Clean it gently using a mild cleaner if needed. Remember, don't use any harsh chemicals as they may damage the red powder coat finish. Also, make sure all connections are tight to avoid air leaks. If you plan to use the injection ports, ensure you use compatible products. Have fun enjoying the improved performance of your engine!