Use this AEM cold air intake system when you want to enhance your Subaru Forester 2.5L's power. It's perfect for car enthusiasts who love to upgrade their vehicles for better performance. The air intake tube is made of mandrel - bent aluminum with a gunmetal gray powder coated finish. The cone - shaped AEM Dryflow air filter doesn't need oil and can last up to 100,000 miles before cleaning. A custom heat shield helps keep things cool under the hood.