K&N parts matching Champ Labs. AF3917 air filter

The Champ Labs. AF3917 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
Ricardo , Indio, California
Got it fast. Love it.
Peter Coffee, Walnut Creek, California
Easy to install. Haven't noticed more power.
Paul Fineberg, Woodbridge, Virginia
Another great K&N filter, that fit right in like a glove in my 2017 BMW X5. I could feel the difference the first time I jumped on it on the highway. It was quick before, but you can feel even more zip off the get-go with the increased air that the K&N is providing.
33-2428 K&N 33-2428 Replacement Air Filter
List Price: $94.39
Your Price: $60.99