Using your Injen cold air intake is easy. First, make sure your engine is off and cool before installation. Follow the included instructions carefully to attach the intake to your Mazda 6. Once installed, start your engine and enjoy the enhanced performance. When it comes to maintenance, regularly check the Injen SuperNano - Web dry air filter. You can clean it as needed following the cleaning guide in the package. Avoid driving through deep water as it can damage the intake. If you notice any unusual noises or a drop in performance, check the intake for any loose parts or damage. And remember, this intake comes with a limited Lifetime Warranty, so keep your purchase details safe.