aFe 21-90020 Magnum FLOW Pro DRY S Universal Air Filter (5.5" Flange)

Vehicle Fitment

• Universal Fit - Designed for compatible performance intake systems with a 5.5" flange (Not vehicle-specific; verify with intake manufacturer)

Features

• Magnum FLOW Pro DRY S oil-free synthetic media with high filtration efficiency (~99.2%)
• Washable and reusable design for repeated cleanings and long service life
• Pliable polyurethane flange with integrated bumps for a secure, leak-free seal
• Conical, oval-tapered shape enhances airflow over stock filters
• Deep, evenly spaced pleats increase usable surface area and dust holding capacity
• Durable 100 % polyurethane top and base construction
• Universal design fits many aftermarket cold air and Magnum FORCE intake systems
• Oil-free media eliminates messy oiling during maintenance

Specifications

• Part Number: 21-90020
• Filter Media: Pro DRY S synthetic, oil-free
• Flange Inside Diameter: 5.5 in
• Base Outside Dimensions: 10 x 7 in (oval shape)
• Top Outside Diameter: 7 in
• Filter Height: 8 in
• Shape: Oval conical performance air filter
• Reusable/Washable: Yes

Included Components

• 1x aFe Magnum FLOW Pro DRY S Universal Air Filter (21-90020)

Product Description

The aFe 21-90020 Magnum FLOW Pro DRY S Universal Air Filter is a high-flow, oil-free replacement air filter engineered to boost airflow and filtration performance in compatible aftermarket intake systems, especially those with a 5.5" flange connection. Featuring advanced Pro DRY S synthetic media, this filter provides excellent airflow while efficiently capturing contaminants, and its washable and reusable design helps lower long-term maintenance costs.

Constructed with a durable polyurethane frame and a flexible flange with integrated seal bumps, the 21-90020 creates a tight, leak-free fit when clamped into performance intake openings. The oval conical shape and deep pleat design increase usable surface area for improved dust holding capacity and service intervals. Because this is a universal-fit filter element, always verify that the filter's flange dimensions match your specific intake system before installation.