Using the Injen Evolution Intake is easy. First, make sure your vehicle is turned off and cooled down. Follow the included instructions to remove the old intake and install this new one. The Twist - Lock System makes attaching the air filter simple. Just lock it in place securely. When driving, the intake will automatically draw in cool air through the ram air scoop. As for maintenance, check the air filter regularly. If it looks dirty, it's time to clean or replace it. You can use a mild cleaner to clean the filter. Avoid using harsh chemicals as they may damage the filter. When storing the intake, keep it in a dry place away from direct sunlight and extreme temperatures. Also, make sure to check all the connections periodically to ensure they are tight and secure.