K&N parts matching Champ Labs. AF4003 air filter

The Champ Labs. AF4003 air filter cross references with the K&N air filter parts below. K&N offers compatible air filters for many Champ Labs. air filters giving you an alternative.
ProductPart NumberProduct Image 
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
Ricky Johnson, Pulaski, Tennessee
First thing I did when I bought my car was throw out the filter in it and replaced it with a K&N filter. Can't really tell the difference in HP, but I like them because they are easy to clean and re-install. They pay for themself in the long run. Truck has a K&N in it too. Riding mower will have one in it as well.
Bob Pickett, Seekonk, Massachusetts
No problems, changed in a matter on minutes.
Jett Padamada, Keaau, Hawaii
Fit perfectly. Felt an increase on acceleration. Rate 5/5.
33-2354 K&N 33-2354 Replacement Air Filter
List Price: $81.09
Your Price: $51.99