Using your Injen air filter heat shield is a breeze. First, find an air filter with an ID between 2.75 and 3.00 inches under your car's hood. Then, use the adjustable mounts on the heat shield to attach it to the air filter. Make sure it's firmly in place. Installation usually takes less than 30 minutes. When it comes to maintenance, regularly check the mounts to ensure they're tight. If you notice any dirt or debris on the polished finish, simply wipe it off with a soft cloth. Also, avoid using harsh chemicals as they might damage the finish. If you're not using the heat shield for a long time, store it in a dry place to prevent rusting.