K&N Cold Air Intake 57 Series Generation II (MPN: 57-0439)

Enhance engine performance with improved airflow and throttle response.

The K&N Cold Air Intake 57 Series Generation II is engineered to optimize airflow and enhance engine performance for select non-US BMW models including the 520I, 523I, and 528I. This intake system replaces the entire factory air intake, allowing for increased horsepower and improved throttle response across the RPM range. The design features a larger, washable cotton gauze filter that captures more dirt and extends service life, requiring cleaning only after up to 100,000 miles of use.

Constructed with high-quality materials such as plastic for the tube and reinforced components, this intake system ensures durability and longevity. The black tube finish provides a sleek appearance while maintaining functionality. Installation is straightforward, typically completed in 90 minutes or less, making it accessible for those looking to enhance their vehicle's performance without extensive modifications.

K&N induction kits are tailored for specific vehicles, ensuring optimal fit and performance. The open air filter design allows for greater airflow with lower restriction compared to standard factory filters, contributing to a more responsive engine sound and overall driving experience.

Features

• Guaranteed To Increase Horsepower
• Designed To Improve Throttle Response And Engine Sound
• Replaces Entire Factory Air Intake System
• Washable And Reusable Lifetime Air Filter
• Easy To Install, Usually In 90 Minutes Or Less

Specifications

• Manufacturer: K & N Filters
• Manufacturer Part Number: 57-0439
• Recommended Use: Performance
• Tube Finish: Natural
• Tube Color: Black
• Tube Material: Plastic
• Filter Color: Red
• Estimated Install Time (Hours): 1
• Filter Material: Cotton Gauze
• Protection Type: No Protection

Technical Documents

• 57-0439.pdf