Using this EGR cooler is straightforward. First, make sure your vehicle is the 2010 - 2012 Dodge Ram with a 6.7L Cummins engine. You won't need to remove the intake manifold to install it, which saves you time and effort. Just replace the old EGR cooler with this new one. As for maintenance, check for any signs of leakage regularly, especially around the welded areas. Since it's made of stainless steel, it's pretty durable, but you can keep it clean to ensure optimal performance. Keep an eye on the exhaust gas flow and if you notice any changes, it might be time to inspect the cooler. And remember, this cooler has been pressure - tested, so it should serve you well, but always be vigilant for any unusual symptoms in your engine.