K&N 02-07 WRX/STi 57i Performance Intake Kit

K&N 57i Series induction kits are specifically designed for each different vehicle and will free your car from the size restriction that comes with the factory air box. These economical kits can take a variety of different forms based on vehicle characteristics and available space under the hood. Each kit is designed to provide power throughout the RPM range. The extra surface area of these open-air air filters provides even more airflow at lower restriction than a K&N O/E replacement filter which is limited to the size of the factory air box. The larger air filter also captures and holds more dirt increasing its service life before a cleaning is required (up to 100,000 miles). The filter is either directly attached to the engine carburetor or throttle body or indirectly through a tube assembly running from the filter to the engine. All adapters are made from high quality materials such as steel, aluminum, silicon or reinforced nylon to ensure long life. 57i Series Intakes are not legal for use in California and other US States adopting California emission standards. K&N's 57i induction kits are easy to install, economical, and come with K&N's No-Hassle Lifetime Limited Warranty. They consist of a large washable/reusable K&N air filter with adapters for connection to the engine's throttle body.

• K&N No-Hassle Lifetime Limited Warranty
• K&N Million Mile Limited Warranty

Fitment:
Subaru Impreza 2.5i 2007
Subaru Impreza Outback Sport 2007
Subaru Impreza WRX 2002
Subaru Impreza WRX 2003
Subaru Impreza WRX 2004
Subaru Impreza WRX 2005
Subaru Impreza WRX 2006
Subaru Impreza WRX 2007
Subaru Impreza WRX Limited 2006
Subaru Impreza WRX Limited 2007
Subaru Impreza WRX STI 2005
Subaru Impreza WRX STI 2006
Subaru Impreza WRX STI 2007
Subaru Impreza WRX STI Limited 2007
Subaru Impreza WRX TR 2006
Subaru Impreza WRX TR 2007