aFe Magnum FORCE Pro DRY S Universal Conical Air Filter, Part Number 21-91021

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 FORCE Intake Replacement Air Filter w/ Pro DRY S Media 5-1/2 IN F x 7 IN B x 5-1/2 IN T (Inverted) x 6 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 Magnum FORCE Pro DRY S Universal Conical Air Filter is designed for high-flow performance and convenient maintenance in custom automotive intake applications. Part Number 21-91021 uses a progressively layered synthetic filter media positioned between durable polyurethane top and base sections to provide excellent airflow while capturing contaminants with 99.2% filter efficiency.

The oil-free Pro DRY S media is washable and reusable, allowing multiple cleaning cycles with ordinary soap and water. Tall, open, evenly spaced pleats provide strong dust-holding capacity and help extend service intervals between cleanings. A pliable polyurethane flange with integrated sealing bumps helps maintain a tight, leak-resistant connection throughout the filter’s service life.

This aFe universal intake replacement filter features a 5.5-inch front opening, 7-inch base, 5.5-inch inverted top, and 6-inch height. Its 100% polyurethane construction supports long-term durability, while the open conical design helps maximize intake airflow for potential performance gains. The filter is intended for automotive applications and is not CARB approved. Verify intake configuration and fitment before installation.

What's Included

• One aFe Magnum FORCE Pro DRY S Universal Conical Air Filter

Specifications and Technical Data

• Brand: aFe
• Part Number: 21-91021
• Product Type: Universal automotive air filter
• Filter Media: Three-layer progressively finer synthetic media
• Filter Efficiency: 99.2 percent
• Construction: 100% polyurethane frame and flange
• Serviceability: Washable and reusable with soap and water
• Configuration: Inverted conical intake filter

Features:

• High-Flow Performance: Promotes excellent airflow for improved intake performance potential.
• Oil-Free Pro DRY S Media: Eliminates the need for filter oil and simplifies routine servicing.
• Washable and Reusable: Cleans with soap and water for multiple maintenance cycles.
• Durable Sealing Design: Pliable polyurethane flange and integrated bumps help provide a tight, leak-resistant seal.

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