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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

I've have never been disappointed by the quality and value of a K&N filter. I've purchased one for every vehicle I've purchased in the last 25 years. I keep my cars to 200k+, Motorcycles to 80k+, and all sold running well. K&N air filters lowers cost of maintenance, boost performance and efficiency of the vehicle. Acura Legend 290K Toyota Celica 287k, Honda GL1100 91K, Passat TDI 240K, Honda ST1100 89K and Currently Yamaha FJR1300 43K & Toyota Corolla 88K.

Larry
San Angelo, Texas
No issues out of the box; filter fit right in place within the factory Honda box. I can tell an improvement in power when I step on the gas, which is needed out of a 4 cyl engine. Have used K&N Filters in my V8 truck with the same increased response. Great product, no complaints

Rob
Gurnee, Illinois
The install took a little longer than I was expecting but going from a Honda to a Lexus IS quite different and I'd use the same method for install if I had to do it again. Kinda bummed out that the cleaning kit did not come with the intake for the price I paid for it, seems like they could have thrown that in. The intake itself has increased a noticeable amount of torque in acceleration . It's a low growl under 2500-3000 rpms but once u hit about 40 mph u can tell the difference and a bit of growling sound that will give your v6 a new place in people's hearts cause they definitely stop and look, it's priceless on the freeway above 60 mph when you have a distance to travel. I would recommend this product to anyone, Thanks K&N!

Jon Harris
Portland, Oregon