Perrin 05-09 LGT / 08-11 WRX / 08-11 STi Drop In Filter
Don’t let a flimsy paper filter get between you and true performance.The PERRIN Panel Filter is the answer. A stealthy approach to higher air flow. Increases in horsepower are a simple easy install away. Quick cleans are simple with our aerosol cleaner and spray oil. After all, more air equals more power!