K&N parts matching Champ Labs. AF3939 air filter

The Champ Labs. AF3939 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
John Miller, Waldorf, Maryland
The K&N air filters are as good as advertised.  I installed one in my 2007 Nissan Armada and the other in my 2008 M-45X.  I automatically noticed an increase in vehicle power which as you probably already know they both sport a V-8 power plant.  I am definitely going to purchase another for my wife's 2008 G-35X within the coming weeks.
Lee Kotze, Blenheim, New Zealand
Absolutely superb service and fast delivery. I will be buying all my filters from you from now on. Just truely incredible. Thanks
Wayne Bourke, New Zealand
Hi all from New Zealand! First off, I could not believe that I just received my K&N filter for my Nissan Fuga V8 so quick, its a long way from me to you. I ordered on the 31/08/2017 and received at my work place 04/09/2017. I don't know if the stars experience worked or not but for ease of service and the speed in which I got my product you get 6 out of 5 stars. I can"t get some things in my own country that fast and we are 1,500 miles long. Ha ha! Thanks for letting my car breathe properly. Oh and by the way, we have a hell of a lot of Nissan Fugas here in NZ, now tell K&N New Zealand to get their act together. Probably still get it faster from you any way. Thanks a lot & cheers for now! Regards, Wayne Bourke - ONE VERY HAPPY CUSTOMER
33-2398 K&N 33-2398 Replacement Air Filter
List Price: $107.89
Your Price: $69.99