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HA-1004R
$82.99 USD
MSRP $129.19 35.8% Off
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K&N HA-1004R Air Filter

Replacement Filters > Race Specific Air Filter
  • Designed to increase horsepower and acceleration
  • Designed for racing and track applications, not for street use
  • Washable and reusable lifetime air filter
  • Low restriction
This K&N racing air filter has just two layers of cotton to provide even lower air restriction than our replacement air filter for street vehicles. Unlike K&N replacement air filters, fuel management modifications will be necessary with this racing filter. K&N racing air filters are washable and reusable and come with a one year limited warranty. This product is for closed course competition use only.

More Info on K&N High Flow Air Filters for Sport Bikes & Street Motorcycles

Product Specifications

Air Filter Large End Diameter4 in (102 mm)
Air Filter ShapeTapered Conical
Base Inside Diameter4 in (102 mm)
Base Outside Diameter4 in (102 mm)
Filter MaterialCotton Gauze
FlangesNone
Height5 in (127 mm)
Inner WireNo
Package Contents2 Air Filters
Package Quantity2
Product Box Height5.75 in (146 mm)
Product Box Length9.38 in (238 mm)
Product Box Width5.38 in (137 mm)
Product StyleTapered Conical Air Filter
This Product Includes2 Filters
Top Material/FinishBlack Powder Coated
Top Outside Diameter3.75 in (95 mm)
Top StyleMetal
Weight1.3 lb (0.6 kg)

Customer Feedback

Very efficient filter. Good instructions both online and enclosed with the packaging. Simple straight forward replacement for my old filter. My car is a 2013 Honda Fit Sport and the exchange took less than 5 minutes to accomplish. I also have a cool air kit with the K&N ait filter and it works great! Thanks - Keep up the good work.

Clive Bevan
Boulder City, Nevada
I have a 2014 Honda Accord LX, and was kinda interested in purchasing an intake system for it. Looked it up at KNFilters.com and found it was a great product. Ordered it right away. The Intake was installed and is the greatest invention ever made! Delivered Friday, installed Saturday. Thanks for the quick shipping on that.

Edwardo Castillo
San Diego, California
Once again, a five star experience with K&N. We use your air cleaners in three of our four vehicles and now in our Honda lawn mower. It runs so much better, if it was dynoed it would probably show a 15 increase in power. I'm fine with paying a little more for a lifetime cleaner, it amounts to about five stock paper cleaners that would be used in one season, a no brainer.

Tom Lundquist
Pollock Pines, California