This AEM DryFlow air filter element is a reusable, clamp-on conical filter built with reusable cotton filter media in red. It features a 2.5in inside diameter flange for clamping onto compatible open-element intake tubing, tapering from a 5.5in outside diameter base up to a 4.75in outside diameter top, standing 5in tall overall. Sold individually, it is a universal-fit replacement or upgrade element compatible with any cold air intake or short ram intake system built around a 2.5in inlet.
Specifications:
- Type: Air Filter Element
- Media: DryFlow, Reusable Cotton
- Mounting: Clamp-On
- Shape: Conical
- Color: Red
- Base Outside Diameter: 5.5in
- Top Outside Diameter: 4.75in
- Height: 5in
- Flange (Inside Diameter): 2.5in
- Reusable: Yes
- Fitment: Universal
- Sold As: Each
- Part Number: AEM-21-2011DK
FAQ
Is AEM-21-2011DK a universal-fit air filter?
Yes. This AEM DryFlow filter element mounts via its 2.5in flange and fits any open-element cold air intake or short ram intake system built around that inlet diameter, regardless of vehicle make or model.
Is AEM-21-2011DK washable and reusable?
Yes. The Reusable Cotton DryFlow media on this filter is designed to be cleaned and reused rather than replaced, extending service life across many drive cycles.
What are the dimensions of AEM-21-2011DK?
This conical filter element measures 5.5in Base, 4.75in Top, 5in Tall, with a 2.5in flange inside diameter.

