K&N Cold Air Intake 57 Series Generation II (MPN: 57-0371)

Enhance engine performance with improved airflow and throttle response.

The K&N 57i Series Generation II Cold Air Intake is engineered to optimize airflow and enhance engine performance for select non-US Opel Astra G and Vauxhall Astra Mk4 models. This intake system replaces the entire factory air intake, allowing for increased horsepower and improved throttle response across the RPM range. The black aluminum tube is designed for durability and longevity, while the washable cotton gauze filter provides superior filtration and can last up to 100,000 miles before needing cleaning.

This cold air intake system is designed for easy installation, typically completed in 90 minutes or less, making it accessible for both enthusiasts and casual users. The larger surface area of the open-air filter allows for greater airflow with lower restriction compared to standard OE replacement filters. High-quality materials such as steel, aluminum, and reinforced nylon are used in the construction of the intake components, ensuring reliability and performance.

With the K&N 57i Series, users can expect a noticeable improvement in engine sound and responsiveness, making it a valuable addition to any performance-oriented vehicle. For specific application data, refer to the K&N website to ensure compatibility with your vehicle.

Features

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

Specifications

• Manufacturer: K & N Filters
• Manufacturer Part Number: 57-0371
• Recommended Use: Performance
• Tube Color: Black
• Tube Material: Aluminum
• Filter Color: Red
• Estimated Install Time (Hours): 1
• Filter Material: Cotton Gauze
• Protection Type: No Protection

Technical Documents

• 57-0371.pdf