Using this ETS airbox for your 2022 - 2025 Subaru WRX is a breeze. First, make sure your vehicle is not the Eyesight model WRX as it won't fit. Also, remember this airbox is only for the ETS intake, not the stock one. When installing, use the included hardware and the factory intake duct. It's designed for easy installation, so you don't need to be a pro. For maintenance, regularly check the airbox for any signs of damage or debris. Clean it gently if needed. By following these steps, you'll keep your airbox working great and your engine getting the coldest air charge.