K&N 33-2005 High-Flow Air Filter

Upgrade your BMW's performance with the K&N 33-2005 High-Flow Air Filter, designed to fit a variety of models including the BMW 533i (1984), 635CSi (1987-1989), and M3 (1990-1991). This washable and reusable filter features a cutting-edge design made from layered, oiled cotton media, which not only improves airflow but also captures harmful contaminants. Enjoy the benefits of increased horsepower and enhanced engine efficiency, all backed by K&N's No-Hassle Lifetime Limited Warranty.

Key Features

• Material: Cotton Gauze
• Shape: Panel
• Re-Oiling Amount: 1.59 oz (47 ml)
• Frame Design: Flexible
• Height: 1.313 in (33 mm)
• Outside Length: 12.5 in (318 mm)
• Outside Width: 7.063 in (179 mm)
• Weight: 1.8 lb (0.8 kg)
• Washable: Yes
• Warranty: No-Hassle Lifetime Limited

Vehicle Fitment

• BMW 533i (1984)
• BMW 635CSi (1987-1989)
• BMW 320i (1981-1983)
• BMW M3 (1990-1991)
• BMW 325e (1984-1985)
• BMW 735i (1985-1987)
• BMW 318i (1984-1985)
• BMW 535i (1987)
• BMW 528e (1983-1985)
• BMW 733i (1980-1984)
• BMW 528i (1980-1981)
• BMW 633CSi (1982-1984)
• BMW 530i (1978)
• BMW 535is (1988)

Customer Insights

Many BMW owners have reported noticeable improvements in throttle response and overall engine performance after installing the K&N 33-2005 filter. Users appreciate the ease of installation, which allows them to quickly upgrade their vehicle without any modifications. The longevity of the filter, with its washable design, ensures that drivers save money in the long run while enjoying enhanced driving experiences.

Watch the Filter in Action