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 heatshield 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.Features:Direct fit for the 2001-2006 BMW 330iDyno proven peak gains of 7 whp and 9 wtq on the stock tuneHighly aggressive intake tone under accelerationNo tune requiredWorks with stock or Mishimoto Silicone Intake HosesBlack powder-coated heatshield keeps unwanted hot air from entering the air filterMishimoto High-Flow Oiled Air Filter receives maximum airflow from the front of the vehicleSmooth design eliminates restrictions and improves airflowUtilizes stock air inlet ductMishimoto Lifetime WarrantyPipe Diameter: 3.5"Oiled Filter: 38 g of oil on filterPipe Material: SiliconeChassis Codes: E46Engine Codes: M54B30Oil Color: RedHeat Shield Material: SteelMax Gain:7 whp and 8 wtq on stock tunePurchase Includes (1) Silicone Intake Hose w/ Integrated CNC Pipe | (1) High-Flow, Oiled Filter | (1) Heatshield w/ Pre-assembled Protective Edging Hardware | Mishimoto Lifetime WarrantyFitment/s:BMW 330i 2001-2006Note/s:22 in-lbs (2.5N*M) recommended for all worm-gear clamps.These clamps have an operating range of 18-27 in-lbs 2-3N*M.Do not exceed the maximum torque rating of 27 in-lbs (3N*M).