Using your Injen Evolution cold air intake is straightforward. First, follow the included instructions to install it with the help of the premium hardware and the easy - to - use twist - lock system. Once installed, the intake will start working right away to improve your engine's performance. As for maintenance, check the SuperNano - Web dry air filter regularly. If it looks dirty, you can clean it according to the cleaning guidelines provided. Avoid getting the filter wet during normal use as it's a dry - type filter. Also, make sure to keep the induction tube free from any debris. When you're driving in dusty conditions, it might be a good idea to check the filter more often. This way, your Injen intake will keep performing at its best for a long time.