Your Cart Is Empty
Showing 1 - 3 of 3

AEM DryFlow Cold Air Intake Replacement Filters - 21-201DK

DryFlow Cold Air Intake Replacement Filters
  • $54.99
  • 1-Year Lower-Price Guarantee
  • Free Shipping
  • Ships By 12/13


  • Style:
    AEM part # 21-201DK
  • Part #:
  • Reference image above for dimensional measuring diagram
  • Flange: 2.5in.
  • Base: 6in.
  • Top: 5.125in.
  • Height: 5.125in.
  • For use with intake part # 21-400C

Have a Question?
Have a Question? Ask a product expert! (800) 874-8888 Live Chat

We’re sorry. The information you have requested is temporarily unavailable.

AEM DryFlow Cold Air Intake Replacement Filters Part #21-201DK Customer Reviews

Average Rating

6 Customer Reviews

Best on the market

Reviewed by Phillip G (Las Vegas, NV) Reviewed for a 2010 Scion xD — May 23, 2018 1:27 PM

Was this review helpful?
Yes   No

Needed a replacement filter that I can switch out while one was being cleaned so I don't have to wait for it to dry

Replacement filter (cai 08 mazda 3 GT hatchback)

Reviewed by Harry A (LAS VEGAS, NV) Reviewed for a 2008 Mazda 3 — Aug 09, 2017 1:09 AM

Was this review helpful?
Yes   No

Great filter. Had one before on my car for 3yrs. Finally got around to getting a new one. After installing the new replacement filter I got better everything. Car felt way better, more power all around. And sounds great.

great new replacement filter

Reviewed by Anthony E (Laurelton, NY) Reviewed for a 2004 Mazda 3 — Jan 14, 2016 2:37 PM

Was this review helpful?
Yes   No

This filter is better than the gray filter that came with the CAI which began to fall apart at the top. The old gray filter is made of rubber around the top and bottom and started to crack and break apart. The replacement is better designed with a mesh around the filter and a hard plastic like material around the top and bottom. I definitely give this my full endorsement should last much longer than the other filter.

Customer service

Reviewed by Erik Q (Fillmore, CA) Reviewed for a 1989 Honda CR-X — Jul 02, 2015 7:24 AM

Was this review helpful?
Yes   No

I order a air filter and it was the wrong one but due to my mistake . But they were very fast on delivery and my return! !!! VERY GREAT SERVICE THANKZ AUTO ANYTHING! !!

Very good!!!

Reviewed by marlon q (National City, CA) — Feb 07, 2012 9:32 PM

Was this review helpful?
Yes   No

The AEM is very good bec! May car is running good and more house power and safety!!!!

AEM air filter on my 02 Civic Si

Reviewed by Joe S (Spotsylvania, VA) Reviewed for a 2002 Honda Civic — Dec 14, 2011 11:40 PM

Was this review helpful?
Yes   No

The AEM Dry Flow air filter is the only way to. Ever since I bought an AEM intake I was sold on the quality. Filtration seems to be superior after pulling the intake off & looking at how clean the inside of the pipe & throttle body still are after over a year of daily driving.