Replace your worn or dirty aFe Momentum intake filter with the aFe 20-91211D Magnum FLOW Pro DRY S replacement air filter. This filter is designed for select aFe POWER Momentum intake systems and uses oil-free Pro DRY S synthetic media for simple maintenance without filter oil. The manufacturer lists the filter dimensions as 3.13" flange ID x 6" base x 4.5" inverted top x 6.25" height. :contentReference[oaicite:0]{index=0}
The Pro DRY S media uses three layers of progressive synthetic dry filter media for street and light off-road use. The inverted top design increases usable filter surface area, while the deep open pleats help improve airflow and dust-holding capacity. The filter also features a polyurethane base and top to help maintain shape through repeated engine bay heat cycles. :contentReference[oaicite:1]{index=1}
This is a washable and reusable replacement air filter for aFe POWER Momentum intakes. It includes a stainless steel clamp and can be cleaned using aFe POWER CLEANER when service is needed. :contentReference[oaicite:2]{index=2}
Features
- Genuine aFe POWER replacement air filter
- Part number: 20-91211D
- Magnum FLOW Pro DRY S media
- Designed for aFe POWER Momentum intake systems
- Oil-free synthetic dry media
- Three layers of progressive filter media
- Washable and reusable
- Inverted top for increased filter surface area
- Deep open pleats for airflow and dust-holding capacity
- 100% polyurethane base and top
- Includes stainless steel clamp
- Best suited for street and light off-road use
- Does not require filter oil during maintenance
Filter Dimensions
- Flange ID: 3.13"
- Base Diameter: 6"
- Top Diameter: 4.5" inverted
- Height: 6.25"
Important Fitment Note
This is a replacement filter for compatible aFe POWER Momentum intake systems. Confirm your intake system, filter part number, flange diameter, base diameter, top style, and filter height before ordering.
What’s Included
- 1 aFe Magnum FLOW Pro DRY S replacement air filter
- 1 stainless steel clamp
- Part number: 20-91211D
Proposition 65 Warnings.
Cancer and Reproductive Harm. See details below.
Items that are not CARB Legal will not be sold and ship to California or CARB states.
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