This AEM DryFlow air filter element is a reusable, clamp-on tapered oval filter built with synthetic filter media in red. It features a 5in inside diameter flange for clamping onto compatible open-element intake tubing, tapering from a 10-1/2 x 8in oval base up to a 7-3/4 x 5in oval top, standing 8in 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 5in inlet.
Specifications:
- Type: Air Filter Element
- Media: DryFlow, Synthetic
- Mounting: Clamp-On
- Shape: Tapered Oval
- Color: Red
- Base Dimensions: 10-1/2 x 8in
- Top Dimensions: 7-3/4 x 5in
- Height: 8in
- Flange (Inside Diameter): 5in
- Reusable: Yes
- Fitment: Universal
- Sold As: Each
- Part Number: AEM-21-2258DK
FAQ
Is AEM-21-2258DK a universal-fit air filter?
Yes. This AEM DryFlow filter element mounts via its 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-21-2258DK washable and reusable?
Yes. The Synthetic 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-21-2258DK?
This tapered oval filter element measures 10-1/2in x 8in at the base, 7-3/4in x 5in at the top, and 8in tall, with a 5in flange inside diameter.

