Using this Injen cold air intake is easy. First, make sure your engine is cool. Then, carefully install the intake according to the included instructions. It should fit snugly in place. When it comes to maintenance, check the air filter regularly. If it looks dirty, clean or replace it as needed. This will keep your engine getting clean air. As for precautions, always turn off the engine before working on the intake. Also, don't use any harsh chemicals on the intake or filter as it could damage them. With proper use and care, this cold air intake will keep your engine performing at its best for a long time.