AEM Oval 4" ID x 9" Height Dryflow Engine Air Filter - Universal
AEM Oval 4" ID x 9" Height Dryflow Engine Air Filter - Universal
AEM Oval 4" ID x 9" Height Dryflow Engine Air Filter - Universal
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AEM Oval 4" ID x 9" Height Dryflow Engine Air Filter - Universal

$83.99
AEM Induction
AEM21-2259DK
Out of stock Many in stock
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AEM Oval 4" ID x 9" Height Dryflow Engine Air Filter - Universal

AEM Dryflow Air Filters are washable synthetic air filters designed for an optimum combination of air flow, filtration, and performance. AEM Dryflow filters use an innovative high performance oil-free filtration material that allows easy cleaning, durable service, and excellent filtration.


Air Filter Shape Oval Tapered
Base Outside Length 10.5 in (267 mm)
Base Outside Width 8 in (203 mm)
Air Filter Material Non-woven Synthetic
Flange Inside Diameter 4 in (102 mm)
Flange Length 1.5 in (38 mm)
Flange Type Centered
Flanges 1
Height 9 in (229 mm)
Package Contents 1 Air Filter
Package Quantity 1
Top Material None
Top Outside Length 9.5 in (241 mm)
Top Outside Width 6.75 in (171 mm)
Top Style ABS Plastic
Washable Yes
Warranty Limited Lifetime
Product Style AEM Dryflow Oval Tapered Air Filter
Air Filter Color Red
Weight 2.6 lb (1.2 kg)
Air Filter Large End Diameter 10.5 in (267 mm)
Product Box Height 8.6 in (218 mm)
Product Box Length 12.4 in (315 mm)
Product Box Width 12.4 in (315 mm)
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Due to the recent suspension of the De Minimis Tariff Policy, there may be tariffs applicable to your order if the item ships from outside of the United States. Any tariffs / import duties are strictly the responsibility of the consumer. Returns Policy

Returns may be accepted within 14 days of purchase pending Return Merchandise Authorization (RMA). No returns or cancellations on special order items. All returns will be charged a 20% restocking fee, no exceptions.

To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging. Item must be able to be resold as new. Several types of goods are exempt from being returned. Hazardous materials, fluids, greases, chemicals, and clothing are not able to return.

Free shipping is available within the lower 48 states for most orders totaling $199 or more. A free shipping option will be available during checkout. This offer is for delivery address in the continental United States and excludes shipments going to Alaska, Hawaii, Military Boxes, and items that require freight shipping.

Processing Time
Patterson Performance stocks a large quantity of items at any given time. Some items may require drop shipping from one of our various distributors. In stock items will ship within 1-2 business days. If you're needing your product quickly, please contact us to verify product availability before placing your order. Orders requiring additional verification (security concerns, incorrect information, etc.) may need additional processing time. Estimated shipping dates are not guaranteed and are subject to change based on inventory levels and manufacturer lead times. Backordered items are shipped immediately once available.

Items ship daily, If the item you ordered is not in stock, a member of our team will contact you via email / phone.

Patterson Performance will only ship to an address that varies from your billing address if payment is made via Paypal or a financing partner.

Patterson Performance ships from multiple warehouses throughout the United States, and sometimes from manufacturers overseas.

You can simply contact us via email / telephone for a live inventory check

P65 WARNING: Cancer and Reproductive Harm

Find more information at www.P65Warnings.ca.gov.

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