The Mishimoto 92-99 BMW E36 (325/328/M3) w/ 3.5in HFM Black Silicone Intake Boot is a high-quality, direct-fit performance upgrade for your BMW E36. This intake boot is constructed from a combination of high-grade silicone and heat-resistant embedded fibers to provide superior strength and durability. It features a 3.5 diameter inlet that increases air flow and helps to maximize engine performance. The black finish also adds a stylish look to your engine bay. This intake boot is designed to fit perfectly with Mishimoto's HFM and is easy to install. With this intake boot, you can maximize your engine's potential and enjoy improved performance.