Perrin Panel Filter (PSP-INT-110) | Subaru WRX 2008-2021 / STI 2008-2018

The Perrin Panel Filter improves airflow to the turbocharger while maintaining excellent filtration, offering a reusable performance upgrade over disposable factory filters.

KEY FEATURES

• Increases airflow compared to OEM paper filters
• Washable and reusable for long-term use
• High-flow cotton filter media
• Improves throttle response and engine efficiency
• Direct drop-in installation

VEHICLE FITMENT

• Subaru WRX (2008–2021)
• Subaru STI (2008–2018)

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