Perrin [02-07 WRX, 04-07 STI, 04-08 FXT] Drop In Panel Filter

The PERRIN Drop In Panel Filter is a high-flow, washable replacement for the restrictive factory paper filter - an easy horsepower gain with no tools and no tuning. Its dual-stage open-cell polyurethane foam element grabs dirt while flowing more air than a paper filter, and it cleans and re-oils with the PERRIN filter service kit to last the life of your vehicle.

• Fits 2002-2007 Subaru WRX, 2004-2007 Subaru STI, 2004-2008 Subaru Forester XT - drops directly into the factory air box
• Dual-stage open-cell foam filter element for improved airflow and filtration
• Washable and reusable - clean and re-oil to extend service life
• No ECU tuning required
• Includes panel filter, warranty and instructions
• Part #PSP-INT-100
• 5-year manufacturer warranty
• Prop 65 Warning: Cancer and Reproductive Harm - www.P65Warnings.ca.gov