The AEM Dryflow universal clamp-on air filter delivers a washable, oil-free alternative to traditional cotton-gauze media without sacrificing airflow or filtration. This filter's wide filter top increases air flow capability, making it well suited to daily-driven custom intake builds.
Specifications:
- Flange ID: 4 in
- Element Height: 9 in
- Filter Media: Dryflow Synthetic (Oil-Free, Washable)
- Warranty: Limited Lifetime
- Part Number: 21-2059DK
FAQ
What size is this AEM Dryflow filter?
It has a 4-inch flange ID and a 9-inch element height.
Is this filter washable and reusable?
Yes. It uses AEM's oil-free Dryflow synthetic media, which is washable and backed by AEM's limited lifetime warranty.
What's the benefit of the wider filter top on this design?
The wider top increases air flow capability, making the filter a good fit for everyday street use as well as performance builds.

