TECH SPECS



Mishimoto is the world leader in performance cooling for the Automotive, Truck, Jeep, and Powersports communities. Watch to learn about everything we do and who we are!

Silicone Inlet Hose Diameter
3.00" I.D. (75mm)

Heat-shield Material
Steel, Black Powdercoat

Oiled Filter
38g of oil on filter

Fits
99–00 BMW 328i (all body types)
99–00 BMW 323i (all body types)
01–05 BMW 325i (all body types)

Chassis Codes
E46

Engine Codes
M52
M54
M56Purchase Includes
(1) Silicone Intake Hose w/ integrated CNC Pipe
(1) High-Flow, Oiled Filter
(1) Heatshield w/ Pre-assembled Protective Edging
Hardware
Mishimoto Lifetime Warranty

Note
The airbox retains a stock like appearance and is 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

PRODUCT ENGINEERING


LIFESTYLE



Watch as our engineering team makes a few pulls on both the stock intake system as well as our prototype unit. The sound improvement is very noticeable in terms of both vo...

DESCRIPTIONMishimoto 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. Check out the video to hear the tone.

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.



LIFETIME WARRANTY


Mishimoto Automotive (“Mishimoto”) warrants its products under this lifetime limited warranty policy (“Warranty Policy”). This Warranty Policy applies solely to: (i) Mishimoto Products purchased directly from Mishimoto or Mishimoto authorized dealers (each a “Mishimoto Product” and collectively, the “Mishimoto Products”) and (ii) the original purchaser of such Mishimoto Product (“Purchaser”). This Warranty Policy is non-transferable and all claims under this Warranty Policy must be accompanied by the original sales receipt. The terms and conditions of this Warranty Policy are subject to change by Mishimoto at any time without notice.

For our complete warranty policy, please click here.


Direct fit for the 1999–2005 BMW 323i/325i/328i

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

Mishimoto Lifetime Warranty