Mishimoto has developed a performance air intake engineered specifically for the 2001-2006 BMW E46 330i. This E46 intake is safe to use with the stock tune as it will not hurt air/fuel ratios under load. This intake has a unique and aggressive tone, and the free-flowing design amplifies engine induction sounds. The stock E46 intake duct is utilized to provide cool airflow to the High-Flow Mishimoto oiled air filter, which features increased filtration surface area compared to the stock paper filter. This filter can be cleaned and reused, providing a lifetime of service. The E46 intake includes a steel heat shield with pre-assembled rubber trim to keep Hot engine air out and help draw cold outside air in. This unit is a complete bolt-on that functions perfectly with the stock tune and can be installed in one hour using common hand tools. This performance E46 intake kit is also fully functional with the Mishimoto silicone E46 intake hoses. As with All Mishimoto E46 parts, this kit includes the Mishimoto lifetime warranty, ensuring superior product quality and craftsmanship.