Using your Cobb SF Short Ram Intake is straightforward. First, refer to the installation guide that comes with the product to install it on your Subaru WRX, STI, or Forester XT. Remember, you'll need to tune your vehicle after installation. When using the intake, you'll notice improved engine performance and more audible engine sounds. For maintenance, regularly check the custom conical cloth air - filter element. If it's dirty, clean or replace it as needed. Also, inspect the 4 - ply steel - reinforced silicone post - MAF for any signs of wear or damage. Keep an eye on the intake body for any cracks or issues, especially since it's made of high - temperature plastic composite. If you encounter any problems, don't hesitate to reach out to the Cobb Tuning support team.