K&N Engineering 57-1002 Performance Cold Air Intake Kit for 1999-2003 BMW 3 Series

A high-density polyethylene (HDPE) rotationally-molded tube helps increase the volume of airflow to your engine, and provides a guaranteed increase in horsepower and torque. These systems are paired with a washable, reusable High-Flow Air Filter featuring oiled cotton filter media. The oversized, conical design allows you to go up to 100,000 miles between filter services under normal highway driving conditions. A custom heat shield helps protect intake air from the high temperature of your engine bay, and the entire system can typically be installed in less than 90 minutes. Some intakes are not legal for sale or use on any pollution controlled motor vehicle in California. See the product specifications for CARB status on each part for a specific vehicle. K&N's roto-molded cold air intake systems are guaranteed to provide an increase in horsepower and torque, and are protected by the K&N No-Hassle Lifetime Limited Warranty. Associated products: RX-4730DK Air Filter Wrap, RX-4730DL Air Filter Wrap, RX-4730DR Air Filter Wrap, RX-4730DY Air Filter Wrap, RU-4730 Universal Clamp-On Air Filter, 99-5000 Filter Care Service Kit Aerosol

• K&N Million Mile Limited Warranty
• Will not void vehicle warranty

Improve airflow to your engine with the K&N Engineering 57-1002 Performance Cold Air Intake Kit, designed for select 1999-2003 BMW 3 Series applications. This system uses a high-density polyethylene rotationally molded intake tube to increase airflow volume, helping deliver a guaranteed improvement in horsepower and torque. The intake is engineered as a direct-fit performance upgrade and can typically be installed in less than 90 minutes using common hand tools.

The kit includes an oversized conical K&N High-Flow Air Filter with washable, reusable oiled cotton filter media. Under normal highway driving conditions, the filter can travel up to 100,000 miles between services. A custom heat shield helps reduce exposure to hot engine-bay air, supporting a denser intake charge and consistent performance. The system is backed by the K&N Million Mile Limited Warranty and is designed not to void the vehicle warranty.

Fitment includes select 1999-2003 BMW 3 Series models, including the 323i, 325i, 325xi, 328i, and 328Ci. This product is EPA compliant and carries California Air Resources Board Executive Order D-269-31 for applicable vehicles. Verify year, model, engine configuration, and emissions requirements before installation. Associated products include K&N RX-4730DK, RX-4730DL, RX-4730DR, and RX-4730DY filter wraps, the RU-4730 universal clamp-on air filter, and the 99-5000 filter care service kit aerosol.

What's Included

• Rotationally molded HDPE intake tube
• Washable and reusable K&N High-Flow Air Filter
• Custom heat shield
• Installation hardware and components
• Installation instructions

Specifications and Technical Data

• Brand: K&N Engineering
• Part Number: 57-1002
• Product Type: Performance cold air intake system
• Intake Material: High-density polyethylene
• Filter Media: Oiled cotton, washable and reusable
• Warranty: K&N Million Mile Limited Warranty
• Emissions Status: EPA compliant; CARB Executive Order D-269-31
• Installation Time: Typically less than 90 minutes

Features:

• High-Flow Airflow: The rotationally molded HDPE intake tube increases airflow volume to support improved engine performance.
• Horsepower and Torque Gains: K&N guarantees an increase in horsepower and torque when the system is properly installed on the applicable vehicle.
• Reusable Air Filter: The oversized conical filter uses oiled cotton media and can travel up to 100,000 miles between services under normal highway driving conditions.
• Heat Shield Protection: The custom heat shield helps protect incoming air from high engine-bay temperatures for more consistent intake performance.

Fitments:
1999 BMW 323i Base
1999 BMW 328i Base
2000 BMW 323Ci Base
2000 BMW 323i Base
2000 BMW 328Ci Base
2000 BMW 328i Base
2001 BMW 325Ci Base
2001 BMW 325i Base
2002 BMW 325Ci Base
2002 BMW 325i Base
2002 BMW 325xi Base
2003 BMW 325Ci Base
2003 BMW 325i Base
2003 BMW 325xi Base
2004 BMW 325Ci Base
2004 BMW 325i Base
2004 BMW 325xi Base
2005 BMW 325Ci Base
2005 BMW 325i Base
2005 BMW 325xi Base

Air Freight Prohibited: false
Not Carb Approved: false
Carb Eo Number: D-269-31
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: Compliant
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1