Perrin Filter Replacement Foam Filter 3.125in (X-PSP-INT-208) | Subaru WRX 2002-2007 / STI 2004-2007

The Perrin Replacement Foam Filter is designed as a direct service component for Perrin intake systems, restoring airflow and filtration performance on EJ-powered Subaru models.

KEY FEATURES

• High-flow foam filter element for performance intakes
• Sized for 3.125 in Perrin intake housings
• Designed to balance airflow and filtration efficiency
• Easy replacement for worn or dirty filter elements
• Supports consistent performance on tuned or stock vehicles

VEHICLE FITMENT

• Subaru WRX (2002–2007)
• Subaru STI (2004–2007)

Perrin products are engineered for precision Subaru performance and long-term reliability.