Using this Injen intake is simple. First, locate your vehicle's old intake system. Remove it carefully following your car's manual. Then, take your new Injen intake and use the Injen Twist - lock System to attach the SuperNano - Web Dry air filter to the housing. It should fit snugly. Install the intake in place of the old one. When it comes to maintenance, regularly check the filter through the ClearVue badge. If it looks dirty, it's time to clean or replace it. Keep in mind that this intake is designed specifically for certain BMW models, so make sure your car is one of the compatible ones before installation. Also, when handling the intake, be gentle to avoid any damage to the roto - molded housings.