How often should I clean the air filter?

The cleaning interval depends on your driving conditions. aFe recommends inspecting the filter regularly and cleaning it when you notice a buildup of dirt and debris. More frequent cleaning may be needed in dusty environments.

What is the filter efficiency of this air filter?

This aFe filter has a 99.2% filtration efficiency. That means it captures the vast majority of airborne particles, helping to protect your engine from wear and damage.

What is the cleaning procedure for this filter?

aFe recommends using their filter cleaning solution and a soft brush to remove dirt and debris. Rinse the filter thoroughly with water and allow it to air dry completely before reinstalling. Do not oil this filter.

aFe Magnum FLOW Pro DRY S Replacement Air Filter (Pair) F-3.5in. / B-5in. / T-3.5in. (Inv) / H-8in.

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aFe

Specifications

Brand: aFe
Part #: 21-91117-MA
UPC: 802959212059

aFe

aFe Magnum FLOW Pro DRY S Replacement Air Filter (Pair) F-3.5in. / B-5in. / T-3.5in. (Inv) / H-8in.

Name: aFe Magnum FLOW Pro DRY S Replacement Air Filter (Pair) F-3.5in. / B-5in. / T-3.5in. (Inv) / H-8in.
Brand: aFe
Price: 134.00 USD
Availability: InStock

$134.00

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Improved airflow and filtration in a washable, reusable package. Oil-free design simplifies maintenance.

Key Features

Oil-free design — no oiling needed after cleaning
Washable and reusable — saves money compared to disposable filters
Synthetic media — provides excellent filtration
Polyurethane flange — creates a tight seal

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Product Details

With three layers of progressively finer mesh synthetic media between 100% polyurethane top and base, this high flow, "oil-free" conical performance filter provides maximum convenience and easy maintenance with excellent airflow. Washable and reusable for multiple cleanings, the tall open evenly spaced pleats provide excellent dust holding capacity for longer service cycle between cleanings. Pliable polyurethane flange with integrated bumps insures tight, no leak seal over the life of the filter. This filter has a 99.2% filter efficiency.