aFe - afe21-91151 - MagnumFLOW Pro DRY S Replacement Air Filter

This filter features three layers of oil-free synthetic media and requires no oil during maintenance to provide maximum convenience. Its progressive layering provides great filtration efficiency and dust holding capacity, while its inverted top makes for more filter surface area, resulting in longer service intervals. This media is best suited for street and light off-road use. Pro DRY S filters are easily recharged with aFe's POWER CLEANER. aFe POWER performance air filters use a rounded, evenly spaced pleat design which allows for more usable filter surface area, providing increased flow and greater dust holding capacity. This aFe POWER performance air filter is constructed with a polyurethane base and top. Unlike other materials that degrade after repeated heat cycles in an engine bay, polyurethane maintains its original molded shape. Utilizing the filter's external locking tabs, the filter snaps into most Momentum series housings with zero hardware. This patent pending interface allows for easy filter maintenance and replacement. Momentum Intake Replacement Air Filter w/ Pro DRY S Media 2-1/2 IN F x 4-1/2 IN B x 4-1/2 IN T (Inverted) x 7 IN H

• Pro DRY S Filter Media Features Three Layers of Progressive Synthetic (Dry) Media for Maximum Convenience
• Inverted Top Design Makes for More Surface Area, Resulting in Longer Service Intervals
• Deep, Open Pleats Allow for Increased Surface Area, Flow, and Dust Holding Capacity
• Innovative Interface for Easy Filter Installation and Maintenance
• Molded-In Expanded Metal is Used to Provide Impact Protection
• 100% Polyurethane Base and Top for Extra Long Filter Life
• 2-1/2 IN F x 4-1/2 IN B x 4-1/2 IN T (Inverted) x 7 IN H
• Replacement Air Filter for aFe POWER Momentum Intakes
• Washable and Reusable for Multiple Cleaning Cycles
• Includes Stainless Steel Clamp

The aFe MagnumFLOW Pro DRY S replacement air filter uses three layers of oil-free synthetic media for convenient maintenance and effective filtration. Progressive media layering supports filtration efficiency and dust-holding capacity, while the inverted top increases usable filter surface area for longer service intervals. The media is suited for street and light off-road use and can be recharged with aFe POWER CLEANER.

Rounded, evenly spaced pleats provide additional usable surface area to support airflow and dust-holding capacity. The filter features a polyurethane base and top designed to maintain its molded shape through repeated engine-bay heat cycles. External locking tabs allow the filter to snap into most aFe POWER Momentum series housings without hardware, supporting straightforward installation, maintenance, and replacement. The filter is washable and reusable for multiple cleaning cycles.

Key Features & Performance Benefits

• Three-Layer Pro DRY S Media: Oil-free progressive synthetic media provides convenient maintenance and filtration performance.
• Inverted Top Design: Increases filter surface area to support longer service intervals.
• Deep, Open Pleats: Provide usable surface area for airflow and dust-holding capacity.
• Polyurethane Construction: The molded base and top are designed for extended filter life through repeated heat cycles.

Key Product Specifications & Technical Data

• Brand: aFe
• Part Number: afe21-91151
• Filter Type: Replacement air filter
• Filter Media: Pro DRY S, three-layer progressive synthetic dry media
• Inlet Size: 2-1/2 inches
• Base Size: 4-1/2 inches
• Top Size: 4-1/2 inches, inverted
• Height: 7 inches

What's Included

• One aFe MagnumFLOW Pro DRY S replacement air filter
• Stainless steel clamp

Fitment

Replacement air filter for aFe POWER Momentum intakes. The external locking-tab interface allows the filter to snap into most Momentum series housings without hardware.

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