aFe MagnumFLOW Pro DRY S Universal Clamp-On Conical Air Filter, Part Number 21-40507

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 7 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 Pro DRY S Universal Clamp-On Conical Air Filter is designed to provide high airflow, dependable filtration, and convenient maintenance for automotive performance applications. Part Number 21-40507 uses a three-layer, progressively finer synthetic filter media positioned between 100% polyurethane top and base components. This oil-free design helps simplify servicing while supporting consistent airflow and reliable engine protection.

Tall, open pleats increase dust-holding capacity, helping extend service intervals between cleanings. The washable and reusable media can be cleaned with soap and water, allowing multiple maintenance cycles without the need for filter oil. A pliable polyurethane flange with an integrated sealing bump helps maintain a tight, leak-resistant connection at the intake tube throughout the filter’s service life. The filter is rated at 99.2% filtration efficiency and is intended for universal clamp-on installation where the application’s intake requirements match the filter’s specifications.

Brief Description
High-flow, oil-free, washable, and reusable conical air filter for compatible automotive intake systems.

Key Product Specifications & Technical Data
Brand: aFe
Product Line: MagnumFLOW Pro DRY S
Part Number: 21-40507
Filter Type: Universal clamp-on conical air filter
Filter Media: Three-layer progressively finer synthetic media
Construction: 100% polyurethane top, base, and flange
Filtration Efficiency: 99.2%
Maintenance: Washable with soap and water; reusable
Filter Orientation: 4-inch flange, 6-inch base, 4-inch top, and 7-inch height

What's Included in the Box
One aFe MagnumFLOW Pro DRY S Universal Clamp-On Conical Air Filter.

Fitment
This is a universal automotive performance air filter. Confirm the intake tube connection, available clearance, and required filter configuration before installation. This product is not CARB approved and may not be legal for sale or use on pollution-controlled vehicles in certain jurisdictions. Review local emissions regulations and application requirements before purchase.

Features:

• High-flow, oil-free synthetic media supports excellent airflow without requiring filter oil
• Washable and reusable design allows multiple cleaning cycles using soap and water
• Tall, open pleats provide increased dust-holding capacity for longer service intervals
• Pliable polyurethane flange with an integrated sealing bump helps maintain a tight, leak-resistant connection

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