Perrin Filter Replacement Cone Filter 3.125in 2002-2007 WRX / 2004-2007 STI

Perrin Filter Replacement Cone Filter 3.125in 2002-2007 WRX / 2004-2007 STI | Foam Element | Reusable Intake Filter

Overview

The Perrin Filter Replacement Cone Filter is a high-quality, reusable intake filter designed specifically for Subaru WRX models from 2002 to 2007 and WRX STI models from 2004 to 2007. This 3.125-inch filter serves as a direct replacement for most Perrin Performance intake systems, including the popular Big MAF series. It provides Subaru enthusiasts with an efficient filtration solution that balances excellent airflow with effective dirt capture, helping maintain engine performance and longevity.

Engineered with a two-piece reticulated polyurethane foam element treated with a special oil, this filter stands out by offering superior dirt-trapping capabilities without the airflow restrictions common to traditional paper or cotton filters. The foam design is washable and easy to maintain, allowing for simple cleaning by rinsing with water and reinstalling. This approach aligns with Perrin’s commitment to durable, performance-oriented components tailored to Subaru platforms.

For Subaru WRX and WRX STI owners, this filter ensures the engine breathes clean air while maximizing power potential and throttle response. Its compatibility with multiple intake systems accepting a 3.125-inch filter size adds versatility, making it an ideal upgrade or replacement part for those focused on maintaining peak engine efficiency and reliability.

Features & Specifications

This Perrin Performance Replacement Cone Filter is engineered for 2002-2007 Subaru WRX and 2004-2007 WRX STI models and features a 3.125-inch diameter foam element. Constructed from reticulated polyurethane foam treated with special oil, it delivers superior filtration and airflow for Subaru enthusiasts seeking reusable and efficient intake filtration.

• Brand: Perrin Performance
• Product: Filter Replacement Cone Filter 3.125in
• Part Number: X-PSP-INT-208
• Fitment: 2002-2007 Subaru WRX / 2004-2007 Subaru WRX STI
• Material: Reticulated Polyurethane Foam
• Finish: Oiled Foam Element
• Construction: Two-Piece Foam Design
• Origin: Not Specified

Key Benefits

• Filtration Efficiency: Specially treated foam traps dirt effectively without compromising airflow.
• Reusable Design: Easy to clean and maintain by rinsing with water, reducing replacement costs over time.
• Direct Fitment: Designed to fit Perrin Big MAF and other 3.125-inch intake systems for seamless installation.
• Engine Performance: Maintains optimal airflow to support consistent power delivery and throttle response.
• Durability: Robust foam construction withstands repeated cleaning cycles without degradation.
• Subaru-Specific: Tailored for WRX and WRX STI models, ensuring proper fit and function within Subaru intake setups.

What's Included

• 1× Perrin Filter Replacement Cone Filter 3.125in

Installation & Compatibility

Installation of the Perrin Replacement Cone Filter is straightforward and DIY-friendly for Subaru enthusiasts familiar with intake maintenance. The filter is a direct replacement for Perrin Big MAF and other intake systems accepting a 3.125-inch filter, requiring no modifications or special tools. Cleaning involves simple rinsing and drying, making upkeep convenient. No tuning adjustments are necessary when replacing the filter alone.

• Professional Installation: Not required; DIY-friendly
• Modifications Required: None
• Verify Compatibility: Confirm fitment for your specific WRX or WRX STI model year

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