Experience a noticeable boost in power and throttle response with the K&N 57i Series induction kit. This performance intake kit replaces the factory air box with a design specifically engineered to increase horsepower and acceleration, delivering improved engine sound and enhanced airflow throughout the RPM range.
Key Features
• Designed to increase horsepower and acceleration while providing broader airflow than OEM filters.
• Replaces the restrictive factory air box for improved throttle response and engine efficiency.
• Washable, reusable filter with an extended service life of up to 100,000 miles.
• Easy to install, usually in 90 minutes or less, with high-quality adapters constructed from steel, aluminum, silicone, or reinforced nylon.
• Provides a consistent power curve and improved engine sound.
Specifications & Compatibility
• 2007 Subaru Impreza 2.5i
• 2007 Subaru Impreza Outback Sport
• 2002-2007 Subaru Impreza WRX
• 2006-2007 Subaru Impreza WRX Limited
• 2005-2007 Subaru Impreza WRX STI
• 2007 Subaru Impreza WRX STI Limited
• 2006-2007 Subaru Impreza WRX TR
Installation & Warranty
Installation instructions can be reviewed here. Enjoy a reliable aftermarket performance upgrade backed by our dedication to durability and quality. Please note: This kit is not compliant with California emissions regulations.
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