Using the Pusher PDC9193CAI Cold Air Intake System is straightforward. First, make sure your vehicle is turned off and cooled down. Then, install the intake system following the provided instructions. It's designed to fit 1991.5 - 1993 Dodge Ram with a 5.9L 12V Intercooled Cummins engine. For maintenance, regularly check the air filter. Since it's washable, you can clean it when it gets dirty to keep it working well. The silicone coupler and stainless clamps ensure a long - lasting connection, but still, check them occasionally for any signs of wear. If you need the product quickly, remember to check our stock levels as most items are special - order and may take 2 - 3 weeks for delivery.