aFe MagnumFLOW Pro DRY S Universal Air Filter, 4-Inch Flange, 6-Inch Base, 4-Inch Inverted Top, 8-Inch Height - 21-91155

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. 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. This construction allows for a proper factory style fit with excellent filter strength. Its inverted top makes for more filter surface area, resulting in longer service intervals. Utilizing the filter's retention groove, the filter locks into most Stage-2 housings with zero hardware. This simple design allows for easy filter maintenance and replacement. Track Series Intake Replacement Air Filter w/ Pro DRY S Media 4 IN F x 6 IN B x 4 IN T (Inverted) x 8 IN H

• Pro DRY S Filter Media Features Three Layers of Progressive Synthetic (Dry) Media for Maximum Convenience
• Innovative Interface for Easy Filter Installation and Maintenance
• 100% Polyurethane Base and Top for Extra Long Filter Life
• Washable and Reusable for Multiple Cleaning Cycles
• 4” Flange ID x 6” Base x 4” Top x 8" Height
• Replacement Air Filter for aFe POWER Intakes

The aFe MagnumFLOW Pro DRY S Universal Air Filter is a washable and reusable replacement filter designed for aFe POWER intake systems and select Stage-2 housings. Part number 21-91155 uses three layers of progressive, oil-free synthetic media to provide effective filtration without requiring oil during service. Its dry-media design offers a convenient maintenance solution for street and light off-road applications.

The rounded, evenly spaced pleat design increases usable filter surface area to support strong airflow and extended dust-holding capacity. A polyurethane base and top provide durable construction and a reliable factory-style fit, while the inverted top creates additional filtration area. An integrated retention groove allows the filter to lock into compatible Stage-2 housings without additional hardware, simplifying installation, removal, and replacement. When cleaning is required, the filter can be serviced with aFe POWER CLEANER and reused through multiple maintenance cycles.

Product Specifications & Technical Data:

• Brand: aFe POWER
• Part Number: 21-91155
• Product Type: Universal performance air filter
• Filter Media: Three-layer progressive synthetic dry media
• Flange Inside Diameter: 4 inches
• Base Diameter: 6 inches
• Top Diameter: 4 inches, inverted
• Filter Height: 8 inches

What's Included: One aFe MagnumFLOW Pro DRY S Universal Air Filter. Verify intake and housing compatibility before installation. This product is not CARB approved and may require acknowledgment of applicable emissions restrictions.

Features:

• Three-layer Pro DRY S synthetic media provides effective filtration without oil during maintenance.
• Rounded, evenly spaced pleats maximize usable filter area for increased airflow and dust-holding capacity.
• Durable polyurethane base and top support a secure, factory-style fit and extended filter life.
• Washable and reusable design allows multiple cleaning cycles with aFe POWER CLEANER.

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