K&N High-Flow Original Drop In Air Filter for 05-08 LGT / 08-11 WRX / STi 33-2304

K&N replacement air filters are designed to enhance horsepower and acceleration while maintaining superior filtration. With over 1,200 different models available, we cater to a vast majority of vehicles. These reusable air filters are specifically crafted to fit seamlessly into your existing factory air box. Their simple drop-in design facilitates easy installation, requiring only the removal of the disposable filter and its replacement with a K&N. Our replacement air filters for street vehicles come with a renowned K&N Million-Mile Limited Warranty, ensuring they are the last air filter your vehicle will ever need. The high-flow air filters feature a cutting-edge design of oiled cotton media, engineered to optimize airflow and capture contaminants effectively. This design is intended to deliver an increase in horsepower. Each performance air filter is reusable, built to last throughout the lifespan of your vehicle, and backed by K&N's No-Hassle Lifetime Limited Warranty. K&N drop-in replacement filters are designed for easy installation into your factory air box.

Installation Instructions
Technical Bulletin

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