Perrin Replacement Foam Filter Subaru WRX (GR/GV/VA) / STI (GR/GV/VA) 2.75"

Perrin Replacement Foam Filter - Subaru WRX (GR/GV/VA) / STI (GR/GV/VA) - 2.75"

Refresh your Subaru WRX or STI's intake performance with this Perrin replacement foam air filter, designed and manufactured in the USA by one of the most established names in Subaru performance. Perrin Performance has been developing high-quality bolt-on parts for the WRX and STI platforms for over two decades, and their foam filter range is engineered for maximum airflow with minimal restriction.

This filter uses dual-stage reticulated polyurethane open-cell foam that is pre-oiled with a specially formulated tack oil from the factory. Rather than blocking dirt like traditional paper or cotton filters, the open-cell foam matrix grabs and holds particulate while continuing to flow air freely — even as the filter loads up with road grime. The unique two-piece design allows the foam sleeve to be removed from the filter frame for easy washing, drying, and reinstallation as part of routine maintenance.

This listing covers the Subaru WRX (GR/GV/VA) and STI (GR/GV/VA), 2008 to 2021 model years. This filter is a direct replacement for Perrin cold air intake systems on these vehicles and will also suit any aftermarket intake that accepts a 2.75" inlet ID filter.

Important: This is a replacement filter element only — it is designed to fit Perrin cold air intake systems (or any compatible intake with a 2.75" inlet ID). It does NOT fit the OEM Subaru airbox. Please confirm your intake configuration before ordering.

Key Features

• Dual-stage reticulated polyurethane open-cell foam construction
• Two-piece design — foam sleeve removes from frame for easy cleaning
• Pre-oiled from factory and ready to install
• Washable and reusable — designed to last the life of the vehicle
• Minimal airflow restriction with excellent dirt-holding capacity
• Direct replacement for Perrin cold air intake systems
• Designed and manufactured in the USA by Perrin Performance

Specifications

• Perrin Part Number: X-PSP-INT-324-2
• Filter Type: Cone, two-piece
• Inlet ID: 2.75"
• Material: Reticulated polyurethane open-cell foam
• Fitment: Perrin cold air intake systems / any aftermarket intake with 2.75" inlet ID
• Pre-Oiled: Yes
• Country of Manufacture: United States

Vehicle compatibility and intake fitment notes are provided in the tabs above. Please ensure your existing intake system accepts a 2.75" inlet ID filter before ordering.

Not sure if this filter suits your build? Contact our team at sales@chicaneaustralia.com.au for expert advice.