Using this Perrin turbo inlet hose is a great way to upgrade your Subaru's performance. First, when it comes to installation, make sure you have about 3 hours of free time. You might need to remove the intake manifold to install it properly, so be careful during this step. Once installed, the hose will start working right away, allowing more air into the engine and giving your car a power boost. For maintenance, there isn't much you need to do. Just regularly check the hose for any signs of wear or damage. If you notice any issues, like cracks or leaks, contact the manufacturer as it's covered by a 5 - year warranty. This hose is designed to work with your factory turbo, so you don't have to worry about compatibility problems. Keep enjoying the improved airflow and stylish look it brings to your engine bay.