aFe MagnumFLOW Universal Clamp-On Air Filter with Pro DRY S Media, Part Number 21-40505

With three layers of progressively finer mesh synthetic media between 100% polyurethane top and base, this high flow, "oil-free" conical performance filter provides maximum convenience and easy maintenance with excellent airflow. Washable and reusable for multiple cleanings, the tall open evenly spaced pleats provide excellent dust holding capacity for longer service cycle between cleanings. Pliable polyurethane flange with integrated bumps insures tight, no leak seal over the life of the filter. This filter has a 99.2% filter efficiency. Magnum FLOW Universal Clamp-On Air Filter w/ Pro DRY S Media 4 IN F x 6 IN B x 4 IN T x 5 IN H

• Maximum Convenience and Easy Maintenance With Excellent Airflow
• 100% Polyurethane Frame On All Sides For Extra Long Filter Life
• Washable And Reusable For Multiple Cleaning Cycles
• Maximum Airflow for Maximum Performance Gains
• Pliable Polyurethane Flange w/Integrated Bump
• Filter Washes Clean With Soap and Water

The aFe MagnumFLOW Universal Clamp-On Air Filter with Pro DRY S Media is designed to support strong airflow and dependable engine air filtration in a wide range of automotive applications. Its conical design uses three layers of progressively finer synthetic mesh media between polyurethane top and base components, providing a 99.2% filtration efficiency while maintaining excellent airflow. The oil-free media eliminates the need for filter oil, making service cleaner and more convenient.

Built for repeated use, the aFe MagnumFLOW filter features tall, open pleats that provide excellent dust-holding capacity and help extend service intervals between cleanings. The filter can be washed with soap and water and reused through multiple cleaning cycles. A pliable polyurethane flange with integrated sealing bumps helps maintain a tight, leak-resistant connection throughout the filter's service life, while the polyurethane construction supports durability in demanding under-hood environments.

This universal clamp-on performance air filter is intended for applications requiring a 4-inch inlet connection and a compact conical filter design. The aFe Part Number 21-40505 filter is not CARB approved and may not be legal for use on pollution-controlled vehicles in certain states or jurisdictions. Verify vehicle fitment, inlet requirements, emissions regulations, and installation clearance before purchase. Professional installation is recommended where applicable.

Product Specifications and Technical Data

• Brand: aFe
• Part Number: 21-40505
• Product Type: Universal clamp-on automotive air filter
• Filter Series: MagnumFLOW
• Filter Media: Pro DRY S synthetic media
• Filter Style: Conical performance air filter
• Inlet Size: 4 inches
• Filter Efficiency: 99.2 percent

What's Included

• One aFe MagnumFLOW Pro DRY S universal clamp-on air filter

Features:

• Oil-free Pro DRY S media provides excellent airflow without requiring filter oil during maintenance.
• Three progressively finer layers of synthetic mesh media deliver a 99.2 percent filtration efficiency.
• Washable and reusable construction supports multiple cleaning cycles with simple soap-and-water service.
• Tall, open pleats increase dust-holding capacity and help extend the time between cleanings.
• 100 percent polyurethane top and base construction promotes durability and long filter life.
• Pliable polyurethane flange with integrated sealing bumps helps create a tight, leak-resistant connection.
• Universal clamp-on design is suited to applications using a 4-inch intake inlet.
• Designed to support high airflow and potential performance gains when properly matched to the intake system.

Air Freight Prohibited: false
Not Carb Approved: true
Carb Acknowledgement Required: true
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Regular Stock: t
Units Per Sku: 1