aFe 21-45507 Magnum FLOW Pro DRY S Universal Air Filter (4.5" Flange)

Vehicle Fitment

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

Features

• Pro DRY S oil-free synthetic media for easy maintenance and high filtration efficiency
• Three layers of progressively finer mesh synthetic media for enhanced dust capture
• Washable and reusable for long service life
• Deep, open pleat design increases usable surface area
• Pliable polyurethane flange with integrated bumps for a tight, leak-free seal
• 100% polyurethane top and base for durability
• Conical high-flow design improves engine airflow
• Universal fit for many aftermarket intake systems with compatible flange size

Specifications

• Part Number: 21-45507
• Filter Media: Pro DRY S synthetic, oil-free
• Flange Inside Diameter: 4.50 in
• Base Outside Diameter: 6.00 in
• Top Outside Diameter: 4.75 in
• Filter Height: 7.00 in
• Frame Material: 100% polyurethane
• Filter Efficiency: ~99.2% (high filtration with good airflow)

Included Components

• 1x aFe Magnum FLOW Pro DRY S Universal Air Filter (21-45507)

Product Description

The aFe 21-45507 Magnum FLOW Pro DRY S Universal Air Filter is a high-flow, oil-free replacement filter engineered to increase airflow and improve filtration efficiency in compatible performance intake systems. Its synthetic Pro DRY S media delivers excellent dust holding capacity while requiring no oily maintenance - simply wash and reinstall for repeated use. The deep, evenly spaced pleats and conical shape maximize surface area, extending service intervals and supporting better engine breathing in everyday and enthusiast driving conditions.

Constructed with a durable polyurethane top and base, this filter holds up over countless cleaning cycles. The flexible flange with integrated bump seals ensures a secure, leak-free fit when clamped into an intake opening. Because this part is universal and not tied to a specific vehicle model, always verify your intake's flange size and configuration before purchase to ensure compatibility.