aFe Magnum FLOW Pro DRY S Air Filter, Part Number 21-91101

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. Momentum Intake Replacement Air Filter w/ Pro DRY S Media (6-3/4x4-3/4) IN F x (8-1/4x6-1/4) IN B x (7-1/4x5) IN T (Inverted) x 8-1/2 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 FLOW Pro DRY S Air Filter is a high-flow replacement filter designed to support improved airflow and reliable engine protection. Featuring three progressively finer layers of synthetic filter media between polyurethane top and base sections, this conical filter provides 99.2% filtration efficiency without the need for filter oil. Its open, evenly spaced pleats help capture dust while maintaining airflow, supporting longer service intervals between cleanings.

Built for convenience and repeated use, the aFe Pro DRY S filter is washable and reusable with ordinary soap and water. The 100% polyurethane construction helps provide long-term durability, while the flexible polyurethane flange and integrated sealing bumps promote a tight, leak-resistant connection throughout the filter’s service life. The design supports maximum airflow for performance-oriented intake systems while simplifying routine maintenance.

This aFe Magnum FLOW replacement air filter uses an inverted conical configuration with a 6.75-inch by 4.75-inch flange, an 8.25-inch by 6.25-inch base, a 7.25-inch by 5-inch top, and an 8.5-inch height. It is intended for compatible automotive intake applications using the corresponding filter dimensions and mounting configuration. Part Number 21-91101 is not CARB approved; verify application and emissions requirements before installation.

Product Specifications and Technical Data

• Brand: aFe
• Product Line: Magnum FLOW Pro DRY S
• Part Number: 21-91101
• Filter Type: Conical replacement air filter
• Filter Media: Three-layer synthetic media
• Filter Efficiency: 99.2 percent
• Filter Construction: 100% polyurethane top, base, and flange
• Maintenance: Washable and reusable with soap and water

What's Included

One aFe Magnum FLOW Pro DRY S replacement air filter.

Features:

• High-Flow Performance: Three progressively finer layers of synthetic media support strong airflow for performance-oriented intake systems.
• Oil-Free Maintenance: Pro DRY S media requires no filter oil and can be cleaned using soap and water.
• Washable and Reusable: Designed for multiple cleaning cycles to help extend service life and simplify maintenance.
• Durable Sealing Design: Flexible polyurethane construction with integrated flange bumps promotes a tight, leak-resistant fit.

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