aFe 21-91120 Magnum FLOW Pro DRY-S Oval Cone Filter Universal

Vehicle Fitment

• Universal - fits most aFe Magnum FORCE Stage-2 intake systems with 5- flange, conical oval dimensions

Fitment Notes

• Replacement air filter only; compatible with aFe Stage-2 Magnum FORCE housing part numbers (e.g. 54-13017D, 54-13018D, 54-13026D, etc.)
• Ensure correct flange diameter (5-) and housing orientation; not vehicle-specific

Features

• Pro DRY-S oil-free synthetic media with three progressive layers - no oil needed
• Washable and reusable design for easy maintenance
• Deep, rounded open-pleats maximize airflow and dust storage
• IQ seal groove ensures tight, leak-free fit without adhesives
• 100-% polyurethane base and top for durability and structural strength
• Approximately 99.2-% filtration efficiency
• Tall conical shape (9- height) supports high airflow applications
• Two-year limited manufacturer warranty

Specifications

• Media: Dry synthetic, non-woven, three layers
• Flange ID: 5-in
• Base dimensions: ~9---7--in; top: ~6----5--in; height: 9-in
• Filter Efficiency: ~99.2-%
• Construction: Washable/reusable, polyurethane frame
• Warranty: 2-year limited

Included Components

• 1- Magnum FLOW Pro DRY-S replacement air filter (part-21-91120)

Product Description

The aFe Magnum FLOW Pro DRY-S air filter (part-21-91120) is a universal replacement filter designed for use with aFe Magnum FORCE Stage-2 intake systems. Featuring three layers of oil-free synthetic media, it delivers around 99.2-% filtration efficiency while maximizing airflow without the mess or maintenance of oiled filters.

Constructed with a durable polyurethane frame and deep rounded pleats, it ensures long service intervals and consistent performance. Designed to fit intake housings with a 5- flange and oval cone dimensions (~9---7--in base, ~6----5--in top, 9-in tall), this filter installs easily using the retention groove interface and requires no sealants or adhesives.

Ideal for street, light off-road, or diesel/gas applications using aFe Stage-2 intakes, this product offers reliable airflow gains and engine protection with simple maintenance. Backed by a two-year limited warranty.