aFe MagnumFLOW Air Filters 3-1/2F x 6B x 4-1/2T (INV) x 6H

SKU: 24-91090 | UPC: 802959243275

aFe MagnumFLOW Air Filters 3-1/2F x 6B x 4-1/2T (INV) x 6H for 2002-2021 Subaru WRX STI

This aFe Power Pro 5R replacement air filter fits Takeda intake systems on Subaru WRX and STI models from 2002 to 2021. The round conical design with 3-1/2 inch flange inside diameter 6 inch base 4-1/2 inch inverted top and 6 inch height delivers high airflow through five layers of oiled cotton gauze media for gains in horsepower and torque. Clamp-on style with center flange ensures secure fit and 98.6 percent filtration efficiency while remaining washable and reusable.

Key Features

• Oiled Pro 5R Media: Highest flowing cotton gauze construction with pre-oiled blue filter for immediate power gains and engine protection
• 100 Percent Polyurethane Frame: Seals top bottom and sides for extended filter life and no-leak performance
• Washable Reusable Design: Clean multiple times with aFe kit for long-term cost savings and consistent airflow
• Evenly Spaced Pleats: Tall open pleats hold more dust for longer intervals between services
• Integrated Urethane Bump Seal: Pliable flange with bump provides tight seal on 3.5 inch ID center-mounted clamp-on base

Product Notes

• Direct drop-in replacement for Takeda intake filters on compatible Subaru models
• Use aFe restoration cleaner and oil kit for washing to maintain peak performance
• Packaged in protective box measuring 9 x 9 x 9 inches

Installation Notes

• Professional installation recommended.
• Clamp-on filter installs in minutes using existing Takeda intake tube hardware
• Pre-oiled media requires no additional preparation or tuning

This Part Fits

Why Choose aFe Power?

• Proven track record in motorsports air intake development
• Dyno-tested designs deliver real-world horsepower increases
• Exact engineering matches OEM and aftermarket intake specs

Frequently Asked Questions

• Q: Does this filter fit 2015-2021 Subaru STI with Takeda intake?
  A: Yes it directly replaces the stock Takeda filter on all 2002-2021 WRX and STI models with matching 3.5 inch flange systems
• Q: What material is used in the filter media?
  A: Five layers of progressively finer mesh cotton gauze in pre-oiled Pro 5R blue media for 98.6 percent efficiency and high flow
• Q: What warranty coverage is provided?
  A: Includes aFe Power 2 Year Limited Warranty covering defects in materials and workmanship

Shipping & Handling

• Method: UPS Ground
• Availability: In stock – ships same or next business day
• Packaging: Secure box 9 x 9 x 9 inches
• Weight: 1.1 lbs