aFe Quantum Pro DRY S Replacement Air Filter, Inverted Top, Part Number 21-91132

Quantum Pro DRY S air filter by aFe Power is specifically designed for the Quantum Series cold air intake systems and feature an injection molded base and top for lighter weight and rigidity. The newly designed base includes a built-in, 3-angle velocity stack for smooth, even airflow. The Quantum Pro DRY S filter is a 360-degree radial flow air filter with oil-free, 3-layer progressively finer porosity synthetic media for optimum flow, filtration and convenience. Captive screws are included to eliminate lost hardware and to securely fasten to the Quantum Intake system housing. QUANTUM Intake Replacement Air Filter w/ Pro DRY S Media 5 IN F x (10x8-3/4) IN B x (6-3/4x5-1/2) T (Inverted) x 8 IN H

• Injection Molded Top and Base For Long Lasting Rigidity
• Built In 3 Angle Velocity Stack For Smooth Even Airflow
• Securely Fastens To Housing w/4 Captive Screws
• Unique Filter-To-Housing Integrated Design
• Lighter In Weight

The aFe Quantum Pro DRY S replacement air filter is designed specifically for Quantum Series cold air intake systems. Its oil-free, three-layer synthetic filter media uses progressively finer porosity to provide a balanced combination of airflow, filtration, and convenient maintenance. The 360-degree radial-flow design helps draw air evenly through the filter for consistent intake performance.

An injection-molded top and base provide rigidity while keeping the assembly lightweight. The integrated base features a three-angle velocity stack that helps smooth and distribute airflow as it enters the intake system. The unique filter-to-housing design allows the element to securely attach to the compatible Quantum intake housing, helping maintain a dependable seal during operation.

Four captive screws are included to secure the filter to the housing while minimizing the chance of misplaced hardware during service. This filter is intended as a replacement component for compatible aFe Quantum Series intake systems and uses Pro DRY S media, eliminating the need for filter oil. Verify intake system compatibility before installation. This product is not CARB approved and may not be legal for use on emissions-controlled vehicles in certain locations. California Proposition 65 warnings may apply.

Product Specifications and Technical Data

• Brand: aFe Power
• Product Line: Quantum Pro DRY S
• Part Number: 21-91132
• Filter Type: Replacement radial-flow air filter
• Filter Media: Oil-free, three-layer progressive synthetic media
• Flange Style: Inverted top
• Flange Opening: 5 inches
• Filter Height: 8 inches

What's Included

• One aFe Quantum Pro DRY S replacement air filter
• Four captive mounting screws

Features:

• Injection-molded top and base provide long-lasting rigidity with reduced weight.
• Built-in three-angle velocity stack promotes smooth, even airflow into the intake system.
• Oil-free, three-layer synthetic media balances airflow, filtration, and easy maintenance.
• Four captive screws securely fasten the filter to the compatible Quantum intake housing and help prevent lost hardware.

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