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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
  • Lifetime limited warranty

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

Tim Styles from Citrus Heights, California
February 8, 2018 - Part 28-20304
Fits my 2017 Subaru Outback perfectly. Seals completely.
Marcus Maingot from Whitby, Canada
February 1, 2018 - Part 28-20304
Direct fit. Perfect for my Subaru, with our sensitive MAFs.
Joseph from Ontario, Canada
August 17, 2017 - Part 28-20304
I have 4 of these one for every Subaru we have (STI, Outback XT, Forester XT and Impreza Sport). Best drop in replacement filter out there for cars with sensitive MAF's. Great Product.
Nicholas Fusco from Massapequa Park, New York
June 12, 2017 - Part 28-20304
Fit great and I feel difference...and no oil the dry.
Bradley Slade from Provo, Utah
May 3, 2017 - Part 28-20304
Looks good. Put it into a 2005 Outback and though the fit was snug, I had no problems getting it installed.
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