K&N 57 Series FIPK Air Intake Kit for 1999-2005 BMW 323/325/328 (57-1002)

Fits 1999-2005 BMW 323i, 323Ci, 325i, 325Ci, 325xi, 328i, and 328Ci models.

The K&N 57 Series FIPK (Fuel Injection Performance Kit) is engineered to replace the restrictive factory air filter and intake housing. This system features a rotationally-molded high-density polyethylene (HDPE) tube designed to increase airflow volume and streamline the path to your engine for improved throttle response. It is paired with an oversized, conical K&N High-Flow Air Filter utilizing oiled cotton media, which allows for up to 100,000 miles between services under standard highway driving conditions.

A custom-fit heat shield is included to protect the intake air from high engine bay temperatures, ensuring a cooler, denser air charge. The entire system is designed as a direct bolt-on upgrade and can typically be installed in less than 90 minutes using basic hand tools.

• Rotationally-molded HDPE intake tube for increased airflow volume
• Washable, reusable oiled cotton High-Flow Air Filter
• Oversized conical design extends service intervals up to 100,000 miles
• Included heat shield isolates the filter from engine heat
• Manufacturer Part Number: 57-1002
• K&N Million Mile Limited Warranty