K&N parts matching Champ Labs. AF4021 air filter

The Champ Labs. AF4021 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
Theo, Midlands, United Kingdom
Fantastic boost in performance a bonus.
Roland G Kuhl, Round Lake Beach, IIlinois
I appreciate the K&N Air Filter for my Santa Fe. The boost in performance and increased gas savings is noticeable.Thanks.
Mico Dukic, Ballinhassig, Ireland
Feels like a different vehicle, wish there was 2 stickers in the pack.
33-2378 K&N 33-2378 Replacement Air Filter
List Price: $88.69
Your Price: $56.99