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Part:   28-20304

AEM 28-20304 DryFlow Air Filter

AEM DryFlow Air Filter
Rating Star 1 Rating Star 2 Rating Star 3 Rating Star 4 Rating Star 5   4.9
  • Designed to increase horsepower and throttle response
  • AEM Air Filters are cleanable and reusable for the life of your vehicle
  • Captures up to 99% of harmful contaminants
  • Outstanding performance even in dusty racing conditions
  • Manufactured in the USA
  • Does not require oil
  • Will NOT void vehicle warranty
  • Guaranteed for the life of your vehicle

The AEM 28-20304 fits some Chrysler 300C, Lancia Thema, Subaru B9 Tribeca, Subaru Forester, Subaru Forester Turbo, Subaru Impreza, Subaru Impreza II, Subaru Impreza II WRX, Subaru Impreza II WRX STI, Subaru Impreza III, Subaru Impreza III WRX STI, Subaru Impreza WRX, Subaru Impreza WRX STi, Subaru Legacy, Subaru Legacy GT, Subaru Legacy III, Subaru Legacy IV, Subaru Outback, Subaru Outback II, Subaru Outback XT, Subaru Tribeca, Subaru WRX, Subaru WRX STI, Subaru XV, and Subaru XV Crosstrek models. See vehicle applications for details.
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. Replacement air filters for street vehicles come with a lifetime limited warranty. Other air filters come with a one year limited warranty.

[More Information on AEM DryFlow Air Filters]
Specifications AEM 28-20304 Product Specifications
Air Filter MaterialNon-woven Synthetic
Air Filter ShapePanel
Filter MaterialNon-woven Synthetic
Height2.438 in (62 mm)
Outside Length8.75 in (222 mm)
Outside Width8.563 in (217 mm)
Package Contents1 Air Filter
Package Quantity1
Product Box Height11.7 in (297 mm)
Product Box Length10.4 in (264 mm)
Product Box Width2.6 in (66 mm)
Product StyleAEM Dryflow Panel Air Filter
Weight1.6 lb (0.7 kg)
Accessories / Related Items Accessories / Related Items
Reviews Product Reviews

Cody Berger from Kalispell, Montana
December 12, 2016 - Part 28-20304
It fit great in my Subaru Crosstrek. Didn't make much of a difference till I removed he secondary filter. Then felt a little gain. The only negative? I wish the red side was on the other side of the filter.
Joseph Cizek from Galeton, Pennysylvania
October 25, 2016 - Part 28-20304
I am very happy with my air filter. I had a (Brand Name) but my car does not like oiled filters. My MPG dropped off to 20MPG from 28. My power was reduced, also. I needed a dryflow permanent air filter. So, thank you again. Joseph
David Garfield from La Vista, California
August 26, 2016 - Part 28-20304
Great fit and fast shipping.
Calvin from Minnesota
March 22, 2016 - Part 28-20304
AEM shipped the item quickly, and it fit into my '09 Subaru Impreza quickly and easily.
Raul Santana from Yonkers, New York
October 23, 2015 - Part 28-20304
This filter has excellent construction and quality and it seems more durable than traditional paper element filters. My only concern is the slight drop in fuel economy while driving in stop-and-go city traffic.
Phill Garcia from Aurora, Colorado
October 21, 2015 - Part 28-20304
My order was easy to place online plus my item was shipped and received quicker then I expected plus the AEM DryFlow Air Filter was a simple install, fit like the factory air cleaner and car seems to run better more air flow and my gas mileage up at least 1 to 2 miles more to the gallon.
Greg Livingston from Indianapolis, Indiana
June 1, 2015 - Part 28-20304
Excellent product.