Process West Cold Air Intake w/K&N Filter for Subaru WRX & STI 01-07/FXT 03-08 [PWCAI03]Designed to replace the restrictive factory air intake tract Fabricated from lightweight CNC mandrel bent aluminium tube and has a CNC machined air flow meter mount Comes complete with a K&N high flow air filter which is enclosed in the inner guard Powdercoated black for a factory look finish The Process West Cold Air Intake is perfect for gaining more power from your EJ Subaru, not to mention the sound! The Cold Air Intake Kit is designed to replace