aFe 21-91051 Magnum FLOW Pro DRY S Universal Air Filter (7" Flange)

Vehicle Fitment

• Universal Fit - Designed for compatible aftermarket and performance intake systems with ~7" inlet flange (Not vehicle-specific; verify fitment with your intake before installation)

Features

• Magnum FLOW Pro DRY S oil-free synthetic media for high airflow and easy maintenance
• Washable and reusable design for extended service life and lower long-term costs
• Pliable polyurethane flange with integrated bumps for a secure, leak-free seal
• Deep, open pleat conical design increases usable surface area for improved dust holding
• Enhanced dust capture with excellent filtration efficiency
• Conical performance shape enhances airflow compared with restrictive stock filters
• Durable 100 % polyurethane top and base construction
• Universal design fits many aftermarket cold air, short ram, and performance intake systems

Specifications

• Part Number: 21-91051
• Filter Media: Pro DRY S synthetic, oil-free
• Flange Inside Diameter: 7.00 in
• Base Outside Diameter: ~10.00 in
• Top Outside Diameter: ~7.50 in
• Filter Height: ~8.50 in
• Shape: Conical performance air filter
• Reusable/Washable: Yes
• Filtration Efficiency: High airflow with strong dust capture

Included Components

• 1x aFe Magnum FLOW Pro DRY S Universal Air Filter (21-91051)

Product Description

The aFe 21-91051 Magnum FLOW Pro DRY S Universal Air Filter is a high-flow performance filter element engineered to improve airflow and filtration efficiency in compatible aftermarket intake systems featuring a ~7" inlet flange. Featuring advanced Pro DRY S oil-free synthetic media, this filter balances excellent airflow with effective dust capture - helping support better engine breathing and responsiveness compared with restrictive stock paper filters. Its washable and reusable design significantly reduces long-term maintenance costs and extends service intervals.

Constructed with a pliable polyurethane flange with integrated bump seals and a rugged polyurethane top and base, the 21-91051 creates a secure, leak-free seal when clamped into performance intake openings. The conical shape and deep, open pleats increase usable surface area for enhanced dust holding capacity and longevity. Because this filter is a universal-fit element rather than vehicle-specific, always verify that the filter's flange size and dimensions match your intake system before installation to ensure proper fit and performance.