aFe Quantum Pro DRY S Air Filter 5in Inverted Top
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This item may be on backorder. Please contact us to confirm supplier availability and estimated lead time before ordering.
Regular price
$97.00
Regular price
-20%
$121.25
Sale price
$97.00
Verified Fitment & Application Support
This product is selected for proper fitment and compatibility with the listed engine application. Our team is available to assist with fitment questions, installation considerations, and supporting components to ensure a smooth install and reliable performance.
Got Questions? Feel free to email us or call us at (503) 235-1947
Compliance & Restrictions
California Proposition 65 (Prop 65)
WARNING: This product can expose you to chemicals which is known to the State of California to cause cancer and/or reproductive harm.
For more information, visit www.P65Warnings.ca.gov.
CARB / California Emissions Compliance
This item may be restricted in California and other regions with emissions regulations. If applicable, it is intended for
competition/off-road use only unless otherwise stated. It is the customer’s responsibility to confirm local compliance before purchase.
Orders shipping to restricted areas may be canceled.
The aFe POWER Quantum Pro DRY S Air Filter (part number 21-91129) is a universal-fit unit measuring 5in Inverted Top.
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.
Vehicle Fitment
- Universal application — confirm dimensions and part number against your vehicle before ordering.
Features & Benefits
- Three-layer progressive dry synthetic media — no oiling required
- Washable and reusable, with no risk of oil fouling the MAF sensor
- Ideal for dry, dusty operating conditions
- Next-generation sealed intake housing with an oversized filter
- Engineered for maximum airflow with minimal restriction
Specifications
- Brand: aFe POWER
- Manufacturer Part Number: 21-91129
- SKU: afe21-91129
- Product Line: Quantum
- Filter Media: Pro DRY S
- Part Type: Air Filter
Always verify aFe POWER part number 21-91129 against your vehicle's year, engine, and configuration before ordering.
Shipping Height: 8.9
Shipping Length: 10.4
Shipping Width: 10.3