Mishimoto has developed a performance air intake engineered specifically for the 1999–2005 BMW E46 323i/325i/328i. This 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 under load, and the free-flowing design amplifies engine induction sounds. The stock 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 intake includes a steel heatshield with pre-assembled rubber trim to keep hot engine air out and help draw cold outside air into the filter. 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 air intake kit is also fully functional with our silicone intake hoses as well. This kit includes the Mishimoto Lifetime Warranty, ensuring superior product quality and craftsmanship.

• Direct fit for the 1999–2005 BMW 323i/325i/328i
• Mishimoto Lifetime Warranty
• Black powder-coated heatshield keeps unwanted hot air from entering the air filter
• Works with the stock or Mishimoto silicone intake hoses
• Improves engine tone
• Utilizes the stock air inlet duct
• Fully serviceable Mishimoto oiled air filter provides 84% increase in filter surface area compared to the stock filter
• Air filter has built in velocity stack for crisp throttle response
• Smooth design eliminates restrictions and improves airflow
• Designed in Delaware, USA and filter made in USA
• Pipe Diameter - 3"
• Airbox Material - Silicone
• Oiled Filter - 38g of oil on filter
• Pipe Material - Silicone
• Chassis Codes - E46
• Engine Codes - M52/M54/M56
• Oil Color - Red
• Heat Shield Material - Steel, Black Powdercoat
• Note - The airbox retains a stock like appearance and it designed to work with the stock air inlet duct. Power gains may vary depending on any other engine modifications done to the vehicle, atmospheric conditions, ambient temperature, and the mileage of the vehicle. You may or may not witness the maximum published gains from this air intake.
• Filter re-oil is not included with the lifetime warranty
• Heat Shield: Steel, Black Powder-Coat
• (1) Silicone Intake Hose w/ integrated CNC Pipe
• (1) High-Flow, Oiled Filter
• (1) Heatshield w/ Pre-assembled Protective Edging
• Hardware
• Mishimoto Lifetime Warranty
• 1999-2000 BMW 328i
• 1999-2000 BMW 323i
• 2001-2005 BMW 325i