K&N 33-2372 High-Flow Panel Air Filter for 2005-2010 BMW X3 Z4 N52 3.0L

Vehicle Fitment

• 2007-2010 BMW X3 (E83, 3.0si, 3.0L N52 I6)
• 2005-2009 BMW Z4 (E85/E86, 3.0i / 3.0si, 3.0L N52 I6)

Fitment Notes

• Designed for BMW E-series factory airbox applications only
• Compatible only with naturally aspirated 3.0L N52 inline-6 engines
• Not compatible with turbocharged N54/N55 engine variants

Features

• High-flow oiled cotton gauze filtration media for improved airflow
• Washable and reusable lifetime design
• Engineered to improve horsepower and throttle response
• Multi-layer cotton construction enhances filtration efficiency
• Direct drop-in replacement for OEM air filter housing
• Reduces intake restriction compared to factory paper filters
• Pre-oiled and ready for immediate installation
• Backed by K&N million-mile limited warranty

Specifications

• Part Number: 33-2372
• Filter Type: Panel / Drop-in Engine Air Filter
• Filter Media: Oiled Cotton Gauze
• Engine Type: 3.0L N52 Inline-6 (Naturally Aspirated)
• Position: Engine air intake (factory airbox replacement)
• Washable: Yes
• Reusable: Yes
• Filter Shape: Panel
• Length: 11.25 in (286 mm)
• Width: 9.0 in (229 mm)
• Height: 1.25 in (32 mm)

Included Components

• 1x K&N 33-2372 High-Flow Engine Air Filter

Product Description

The K&N 33-2372 High-Flow Panel Air Filter is designed as a direct replacement for the factory air filter in select BMW E-series vehicles. It uses K&N's signature oiled cotton gauze media to increase airflow while maintaining strong filtration efficiency, helping the engine breathe more freely compared to restrictive OEM paper filters.

Built for long-term performance, this filter is washable and reusable, allowing it to be cleaned and re-oiled instead of replaced. This reduces maintenance costs while maintaining consistent airflow performance over the life of the vehicle.

Ideal for BMW X3 (E83) and Z4 (E85/E86) owners equipped with the 3.0L N52 inline-6 engine, this filter offers improved throttle response, easy drop-in installation, and a balance of performance and durability for daily driving or spirited use.