K&N parts matching Champ Labs. AF4023 air filter

The Champ Labs. AF4023 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
Mrs J Saunders, England, United Kingdom
Excellent product and fantastic service and delivery. I would be very happy to use the service again. J Saunders
Larry Voss , Hebron, Kentucky
The very best airfilter I have ever used.
James R Gamez, San Jose, California
Fast shipment, great packing.
33-2375 K&N 33-2375 Replacement Air Filter
List Price: $78.09
Your Price: $49.99
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
Dustyn Arney, Chesterfield, Missouri
I reset my average MPG display when I installed these a few weeks ago, and I'm tracking about 1MPG better than I have since I bought the car. I'm very pleased with them.
Eddie Morton, North Augusta, South Carolina
It's work great in my Infiniti Q50S.
E.J. Amo, Jupiter, Florida
Recently purchased 2 of these as replacements for 2014 Q50. The filters fit perfectly and I'm sure I will get a lot of life out of them. I purchased a K&N filter for my last car and drove over 100k miles. They are easy to clean and I don't feel any loss in HP.
33-5014 K&N 33-5014 Replacement Air Filter
List Price: $72.69
Your Price: $46.99